Gaya APA
FISHER, J, S. (1989).
Geography And Development: A World Regional Approach (THIRD EDITION).
COLOMBUS:
MERRILL PUBLISHING COMPANY.
Gaya MLA
FISHER, James, S..
"Geography And Development: A World Regional Approach".
THIRD EDITION
COLOMBUS:
MERRILL PUBLISHING COMPANY,
1989.
UMUM.