Gaya APA

CONWAY, D., DREYFUSS, M, J. (1968). ARITHMETIC SKILLS AND PROBLEM SOLVING . New York: Harcourt, Brace & World.

Gaya MLA

CONWAY, Donald., DREYFUSS, MARTIN, J.. "ARITHMETIC SKILLS AND PROBLEM SOLVING". New York: Harcourt, Brace & World, 1968. Textbook.