Meyer, Frank S.
Harcourt Brace, 1961
Buku Teks
Reshetar, John S.
Frederick A. Praeger, 1962
Buku Teks
Purcell, Victor, 1896-1965, author
Victor Gollancz, 1954
Buku Teks
Meyer, Frank S.
Harcourt, Brace , 1961
Buku Teks
Schwarz, Fred
Prentice-Hall, 1961
Buku Teks