Books by Earl R. Parker:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Parker, Earl R. (Earl Randall), 1912-: Brittle behavior of engineering structures. (Wiley, 1957), also by United States. Ship Structure Committee (page images at HathiTrust)- Parker, Earl R. (Earl Randall), 1912-: The effect of grain boundaries on the mechanical properties of ionic crystals (Materials Research Laboratory, Institute of Engineering Research, University of California, 1962), also by Symour Feuerstein (page images at HathiTrust)
Find more by Earl R. Parker at your library, or elsewhere.