Cita APA (7th ed.)

POLIS, A. R., & BEARD, E. M. (1973). Fundamental mathematics for elementary teachers: A behavioral objectives approach. Harper and Row.

Cita Chicago (17th ed.)

POLIS, A. Richard, i Earl M. BEARD. Fundamental Mathematics for Elementary Teachers: A Behavioral Objectives Approach. New York: Harper and Row, 1973.

Cita MLA (9th ed.)

POLIS, A. Richard, i Earl M. BEARD. Fundamental Mathematics for Elementary Teachers: A Behavioral Objectives Approach. Harper and Row, 1973.