Columbia University Press, 1940
Buku Teks
Gelernter, Mark, author
Manchester University Press, 2001
Buku Teks
Rawlison, H.G.
Frederick A Praeger, 1952
Buku Teks
Fitzgerald, C.P.
Frederick A. Praeger Publishers, 1961
Buku Teks
Gzella, Holger, author
Brill, 2015
Buku Teks