Saunders, Alta Gwinn, author
McGraw-Hill, 1940
Buku Teks
Anderson, Chester Reed, author
McGraw-Hill, 1957
Buku Teks
Lesikar, Raymond V. (Raymond Vincent), author
Irwin, 1995
Buku Teks
Lesikar, Raymond V. (Raymond Vincent), author
R.D. Irwin, 1965
Koleksi Publik
Brown, Leland, author
Prentice-Hall, 1959
Buku Teks