edited by John M. Last
Appleton Century , 1980
Buku Teks
editors, John M. Last, Robert B. Wallace ; associate editors, Elizabeth Barrett-Connor [and others]
Appleton & Lange, 1992
Buku Referensi
edited by Philip E. Sartwell
Meredith Publ., 1965
Buku Teks
edited by Philip E. Sartwell
Appleton Century Crofts, 1973
Buku Teks
Penalver, Rafael A., author
Arco Publishing, Inc., 1981
Buku Teks