Taaffe, Robert N
An Atlas Soviet affair / Robert N Taaffe
Frederick A Preager, 1965
Buku Teks
Lieb, Robert C.
Transportation / Robert C. Lieb
Reston Publ, 1985
Buku Teks
Ward, Dederick C.
Geologic reference sources : a subject and regional bibliography of publications and maps in the geological sciences / by Dederick C. Ward, Marjorie W. Wheeler & Robert A. Bier, Jr.
Scarecrow Press, 1981
Buku Referensi
Brady, Robert N.
On-higway trucks/Robert N Brady
Reston Publishing Company, 1982
Buku Teks
Lugton, Robert C.
American topics: a reading-vocabulary text for speakers of English as a second language / Robert C. Lugton
Prentice-Hall, 1978
Buku Teks