edited by Michael W. Alssid and William Kenney
Holt, Rinehart and Winston, 1966
Buku Teks
Pepper, Stephen C.
University of California Press, 1966
Buku Teks
Otto Eduardo Fonseca Lobo
Carswell , 2009
Buku Teks
Luard, Evan, selector
Oxford University Press , 1964
Buku Teks
Hudson, G. F.
Clarendon Press , 1937
Buku Teks