APA (7th ed.) Citation

Sjøholt, P. (1990). Problems in tropical colonization: A world perspective and evaluation. Inst. for Geografi.

Chicago Style (17th ed.) Citation

Sjøholt, Peter. Problems in Tropical Colonization: A World Perspective and Evaluation. Bergen: Inst. for Geografi, 1990.

MLA (9th ed.) Citation

Sjøholt, Peter. Problems in Tropical Colonization: A World Perspective and Evaluation. Inst. for Geografi, 1990.