edited by Douglas C. Greenwood
McGraw-Hill, 1959
Buku Referensi
Hilburn, John L., 1938-, author
McGraw-Hill, 1983
Buku Referensi
[publisher not identified], 1970
Buku Teks
Carroll, John M. (John Millar), 1925-, author
McGraw-Hill, 1961
Buku Teks
Calderone, Mary Steichen, author
The Williams & Willkins, 1970
Buku Teks