Wolff, Robert Lee
The Balkans in our time / by Robert Lee Wolff
Harvard University Press, 1956
 Buku Teks
Archaeologies of sexuality / edited by Robert A. Schmidt and Barbara L. Voss
edited by Robert A. Schmidt and Barbara L. Voss
Routledge, 2000
 Buku Teks
Reed, Bill
Crooks / Bill Reed
Hyland House, 1984
 Buku Teks
Crooks, J.E.
The Spectrum in chemistry / J.E. Crooks
Academic Press, 1978
 Buku Teks
In our own words : extraordinary speeches of the American century / by Senator Robert Torricelli
edited by Senator Robert Torricelli and Andrew Carroll
Kodansha International, 1999
 Buku Teks