East, W. Gordon
Our fragmented world : an introduction to political geography / W. Gordon East, J.R.V. Prescott
Macmillan, 1975
Buku Teks
Jackson, W.A. Douglas
Politics and geographic relationships: readings on the nature of political geography / W. A. Douglas Jackson
Prenciton-Hall , 1964
Buku Teks
Culicover, Peter W.
Syntax / Peter W. Culicover
Academic Press, 1976
Buku Teks
Buss, Leo W.
The evolution of individuality / Leo W. Buss
Princeton University Press, 1987
Buku Teks
Knox, Paul
The geography of the world economy : an introduction to economic geography
Edward Arnold , 1994
Buku Teks