[compiled by] Patrick E. Connor, with the collaboration of Theo Haimann, William G. Scott
Houghton-Mifflin, 1978
Buku Teks
Stryker, Perrin, author
McGraw-Hill, 1954
Buku Teks
Haimann, Theo, author
Houghton Mifflin, 1974
Buku Teks
compiled by David R. Hampton
Prentince-Hall of India, 1979
Buku Teks
Owen, W. V.
Ronald Press, 1958
Buku Teks