Kraus, Michael, author
University of Oklahoma Press, 1953
Buku Teks
Forum Series, 1982
Buku Teks
edited by Hening Cohen
Basic Books, 1969
Buku Teks
edited by Hennig Cohen
Basic Book, 1969
Buku Teks
Kent, Sherman
Appleton Century Croffs, 1967
Buku Teks