Reichard, James S
McGraw-Hill , 2014
Buku Teks
Tank, Ronald W.
Oxford University Press, 1983
Buku Teks
by Philip E. LaMoreaux ... [and others]
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Gilluly, James
W.H. Freeman, 1959
Buku Teks
Lange, Oktavii Konstantinovich, 1883-1975
Foreign Languages Publishing House , 196?
Buku Teks