APA (7th ed.) Citation

Grossman, R. H., & Michaelis, J. U. (1970). Working, playing, learning. Field Educational Publications.

Chicago Style (17th ed.) Citation

Grossman, Ruth H., and John Udell Michaelis. Working, Playing, Learning. Palo Alto, Calif.: Field Educational Publications, 1970.

MLA (9th ed.) Citation

Grossman, Ruth H., and John Udell Michaelis. Working, Playing, Learning. Field Educational Publications, 1970.