Παραπομπή σε μορφή APA (7η εκδ.)

Smith, S. E., & Backman, C. A. (1988). Games and puzzles for elementary and middle school mathematics: Readings from the Arithmetic Teacher. National Council of Teachers of Mathematics.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Smith, Seaton E., και Carl A. Backman. Games and Puzzles for Elementary and Middle School Mathematics: Readings from the Arithmetic Teacher. Reston: National Council of Teachers of Mathematics, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Smith, Seaton E., και Carl A. Backman. Games and Puzzles for Elementary and Middle School Mathematics: Readings from the Arithmetic Teacher. National Council of Teachers of Mathematics, 1988.