APA (7th ed.) Citation

Duker, S. (1972). Individualized instruction in mathematics. Scarecrow Press.

Chicago Style (17th ed.) Citation

Duker, Sam. Individualized Instruction in Mathematics. Metuchen, N.J.: Scarecrow Press, 1972.

MLA (8th ed.) Citation

Duker, Sam. Individualized Instruction in Mathematics. Scarecrow Press, 1972.