Cita APA (7th ed.)

Bitter, G. G., Hathfield, M. M., & Edwards, N. T. (1989). Mathematics methods for the elementary and middle school: A comprehensive approach. Allyn and Bacon.

Cita Chicago (17th ed.)

Bitter, Gary G., Mary M. Hathfield, i Nancy Tanner Edwards. Mathematics Methods for the Elementary and Middle School: A Comprehensive Approach. Boston: Allyn and Bacon, 1989.

Cita MLA (9th ed.)

Bitter, Gary G., et al. Mathematics Methods for the Elementary and Middle School: A Comprehensive Approach. Allyn and Bacon, 1989.