Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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