Sorokin, G
Progress Publisher, 1967
Buku Teks
Frederick A. Praeger Publishers, [date of publication not identified]
Buku Teks
Baransky, N. N., author
Foreign Languages Publishing House, 1956
Buku Teks
Campbell, Robert W., author
Houghton Mifflin , 1960
Buku Teks
Feiwel, George R.
Praeger Pub., 1972
Buku Teks