Ratay, Robert T.
McGraw-Hill, 2010
Buku Teks
edited by Edwin H. Gaylord, Charles N. Gayrold
McGraw-Hill, 1979
Buku Referensi
Ratay, Robert T., editor-in-chief
McGraw-Hill, 2000
Buku Referensi
edited by Edwin H. Gaylord, Charles N. Gaylord
McGraw-Hill, 1968
Buku Referensi
edited by Edwin H. Gaylord, Jr., Charles N. Gaylord
McGraw-Hill, 1980
Buku Referensi