Cita APA (7a ed.)

Robbins, C. L., & Green, E. (1937). School history of the american people (ed. revisada.). World Book Company.

Cita Chicago Style (17a ed.)

Robbins, Charles L., y Elmer Green. School History of the American People. ed. revisada. New York: World Book Company, 1937.

Cita MLA (8a ed.)

Robbins, Charles L., y Elmer Green. School History of the American People. ed. revisada. World Book Company, 1937.