Bowles, Chester, author
University Of California Press, 1956
Buku Teks
Bowles, Chester, author
Harper & Brothers, 1958
Buku Teks
Bowles, Chester, author
Harper, 1955
Buku Teks
Robertson, Hector Menteith, author
Cambridge University Press, 1957
Buku Teks
Carter, Gwendolen M., author
Frederick A. Praeger, 1961
Buku Teks