APA ציטוט

Rugg, H. O. (1938). Changing countries and changing peoples: An introduction to world geography with historical backgrounds. Ginn.

Chicago Style (17th ed.) Citation

Rugg, Harold Ordway. Changing Countries and Changing Peoples: An Introduction to World Geography with Historical Backgrounds. Boston: Ginn, 1938.

ציטוט MLA

Rugg, Harold Ordway. Changing Countries and Changing Peoples: An Introduction to World Geography with Historical Backgrounds. Ginn, 1938.