APA (7th ed.) Citation

Channing, E. (1921). A student's history of the United States (4a. ed.). Macmillan.

Chicago Style (17th ed.) Citation

Channing, Edward. A Student's History of the United States. 4a. ed. Nueva York: Macmillan, 1921.

MLA (9th ed.) Citation

Channing, Edward. A Student's History of the United States. 4a. ed. Macmillan, 1921.