APA (7th ed.) Citation

Armstrong, D. G., & Hunkins, F. P. (1989). World geography: People and places. Merrill.

Chicago Style (17th ed.) Citation

Armstrong, David G., and Francis P. Hunkins. World Geography: People and Places. Columbus, Ohio: Merrill, 1989.

MLA (9th ed.) Citation

Armstrong, David G., and Francis P. Hunkins. World Geography: People and Places. Merrill, 1989.