APA (7th ed.) Citation

Sherman, J. G., & Ruskin, R. S. (1978). The personalized System of intruction. Educational Technology Publ.

Chicago Style (17th ed.) Citation

Sherman, John Gilmour, and Robert S. Ruskin. The Personalized System of Intruction. Englewood Cliffs, N.J: Educational Technology Publ, 1978.

MLA (9th ed.) Citation

Sherman, John Gilmour, and Robert S. Ruskin. The Personalized System of Intruction. Educational Technology Publ, 1978.