APA (7th ed.) Citation

Grubb, K. G. (1931). The northern republics of South America: Ecuador, Colombia and Venezuela. World Dominion Pr.

Chicago Style (17th ed.) Citation

Grubb, Kenneth G. The Northern Republics of South America: Ecuador, Colombia and Venezuela. London: World Dominion Pr, 1931.

MLA (9th ed.) Citation

Grubb, Kenneth G. The Northern Republics of South America: Ecuador, Colombia and Venezuela. World Dominion Pr, 1931.