Cita APA (7a ed.)

Smith, D. E., & Reeve, W. D. (1927). The teaching of junior high school mathematics (1a ed.). Ginn And Company.

Cita Chicago Style (17a ed.)

Smith, David Eugene, y William David Reeve. The Teaching of Junior High School Mathematics. 1a ed. Boston: Ginn And Company, 1927.

Cita MLA (9a ed.)

Smith, David Eugene, y William David Reeve. The Teaching of Junior High School Mathematics. 1a ed. Ginn And Company, 1927.