Thistlethwaite, Frank, author
Cambridge University Press, 1955
Buku Teks
Charles Scribner's Sons, 1964
Buku Referensi
editor Joseph G. E.Hopkins
Charles Scribner's Sons, 1964
Buku Referensi
edited by Robert Richards
Littlefield, Adams, 1955
Buku Referensi
Nussbaum, Arthur, author
Macmillan, 1958
Buku Teks