The Online Books Page

Online Books by

R. N. Robertson

Books from the extended shelves:

• Robertson, R. N.: The applicability of high intensity sheeting on overhead highway signs (Virginia Highway & Transportation Research Council, 1975), also by J. D. Shelor, United States Federal Highway Administration, and Virginia Highway & Transportation Research Council (page images at HathiTrust; US access only)
• Robertson, R. N.: Evaluation of high intensity sheeting for overhead highway signs (Virginia Highway & Transportation Research Council, 1974), also by United States Federal Highway Administration and Virginia Highway & Transportation Research Council (page images at HathiTrust; US access only)

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