APA (7e ed.) Bronvermelding

Crow, H. L., & Trunbull, W. L. (1972). American history: A problems approach. Holt, Rinehart and Winston.

Chicago (17e ed.) Bronvermelding

Crow, Herman L., en William L. Trunbull. American History: A Problems Approach. Nueva York: Holt, Rinehart and Winston, 1972.

MLA (9e ed.) Bronvermelding

Crow, Herman L., en William L. Trunbull. American History: A Problems Approach. Holt, Rinehart and Winston, 1972.