Meade, James E., author
University of Chicago Press, 1953
Buku Teks
edited by Arthur L. Grey and John E. Elliot
Houghton Mifflin, 1965
Buku Teks
Lindauer, John, author
Saunders , 1977
Buku Teks
McKenzie, Richard B., author
McGraw-Hill, 1978
Buku Teks
Landauer, Carl, author
J. B. Lippincott, 1964
Buku Teks