Cita APA (7a ed.)

Harper, R. A., & Stoltman, J. P. (1988). Scholastic world geography. Scholastic.

Cita Chicago Style (17a ed.)

Harper, Robert A., y Joseph P. Stoltman. Scholastic World Geography. [New York]: Scholastic, 1988.

Cita MLA (9a ed.)

Harper, Robert A., y Joseph P. Stoltman. Scholastic World Geography. Scholastic, 1988.