edited by Jean M. fredette
Writers Digest Book, 1990
Buku Referensi
edited by Jean M. Fredette
Writer`s Digest Books, 1988
Buku Teks
Writer's Digest Bokks, 1994
Buku Teks
Arnold, George T., author
McGrawHill, 1996
Buku Referensi
edited by Thomas Clark ... [and others]
Writers digest Books, 1994
Buku Referensi