Hsu, Francis L.K., author
Holt, Rinehart and Winston, 1969
Buku Teks
Wheeler, Mortimer, Sir, author
McGraw-Hill, 1966
Buku Teks
Burns, Edward McNall, 1897-1972, author
W.W Norton, 1984
Buku Teks
Quigley, Carroll
Macmillan, 1961
Buku Teks
Burns, Edward McNall, 1897-1972, author
W.W. Norton & Company, 1973
Buku Teks