| Save | Year | Entries | |
| Rape oil | c1990 | 1 | |
| Rape (Plant) -- See also Rapeseed | 1 | ||
| Rape (Plant) Seed -- See Rapeseed | 1 | ||
| Rape-seed -- See Rapeseed | 1 | ||
Your entry Rape -- United States would be here
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| Rapella Orchid Co. : Rapella Orchid Co | 1954? | 1 | |
| Rapeseed : Ritthausen, Heinrich, | 1872 | 1 | |
| Rapeseed -- Composition | 2016 | 1 | |
| Rapeseed -- Health aspects | 2016 | 1 | |
| Rapeseed oil -- See Rape oil | 1 | ||
| Rapeseed products -- See also Rape oil | 1 | ||
| Raphus -- See also Dodo | 1 | ||
| Raphus cucullatus -- See Dodo | 1 | ||
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Raptores -- See Birds of prey --individual birds of prey, e.g. Owls |
1 | ||
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Raptorial birds -- See Birds of prey --individual birds of prey, e.g. Owls |
1 | ||
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Raptors -- See Birds of prey --individual birds of prey, e.g. Owls |
1 | ||
| Rare animals -- See also Endangered species | 1 | ||
| Rare animals | 3 | ||
| Rare animals -- Connecticut : Dowhan, Joseph J | 1976 | 1 | |
| Rare animals -- North America : Laycock, George | 1969 | 1 | |
| Rare animals -- Philippines : Heaney, Lawrence R | c1998 | 1 | |
| Rare birds : Hobbs, Jared, | c2007 | 1 | |
| Rare book libraries -- California -- San Marino : Henry E. Huntington Library and Art Gallery | 1992 | 1 | |
| Rare books : Margócsy, Dániel, | 2018 | 1 | |
| Rare books -- Bibliography -- Catalogs : New York Botanical Garden | 2014 | 1 | |
| Rare books -- England -- Bibliography -- Catalogs : Wm. Dawson & Sons | 1956 | 1 | |
| Rare books -- Virginia -- Upperville -- Bibliography -- Catalogs | 4 | ||
| Rare bryophytes -- Northern Ireland : Lockhart, Neil | 2012 | 1 | |
| Rare diseases : Berman, Jules J | 2014 | 1 | |
| Rare diseases -- Handbooks, manuals, etc | c1995 | 1 | |
| Rare disorders -- See Rare diseases | 1 | ||
| Rare earth materials -- See Rare earths | 1 | ||
| Rare earth metal compounds -- See also Rare earths | 1 | ||
| Rare earth metal oxides -- See Rare earths | 1 | ||
| Rare earth metals -- Congresses | 1967 | 1 | |
| Rare earth minerals -- See Rare earths | 1 | ||
| Rare earth oxides -- See Rare earths | 1 | ||
| Rare earths | 4 | ||
| Rare garden plants | 3 | ||
| Rare gases -- See Gases, Rare | 1 | ||
| Rare mosses -- Great Britain -- Identification : Porley, Ron | c2013 | 1 | |
| Rare plants -- 2 Related Subjects | 2 | ||
| Rare plants | 4 | ||
| Rare plants -- Africa : Burman, Johannes, | 1738- | 1 | |
| Rare plants -- Alabama | 1979 | 1 | |
| Rare plants -- Alberta | c2001 | 1 | |
| Rare plants -- Bibliography | 2 | ||
| Rare plants -- British Columbia : Straley, Gerald Bane, | 1985 | 1 | |
| Rare plants -- British Columbia -- Geographical distribution -- Maps : Straley, Gerald Bane, | 1985 | 1 | |
| Rare plants -- California | 1988 | 1 | |
| Rare plants -- California -- Congresses : Conference on the Conservation and Management of Rare and Endangered Plants | c1987 | 1 | |