APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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