Cita APA (7th ed.)

Holt, M., & Dienes, Z. P. j. a. (1973). Let's play math. Walker.

Cita Chicago (17th ed.)

Holt, Michael, i Zoltan Paul joint auth Dienes. Let's Play Math. New York: Walker, 1973.

Cita MLA (9th ed.)

Holt, Michael, i Zoltan Paul joint auth Dienes. Let's Play Math. Walker, 1973.