APA (7th ed.) Citation

Koos, L. V. (1946). Integrating high school and college: The six-four-four plan at work. Harper.

Chicago Style (17th ed.) Citation

Koos, Leonard V. Integrating High School and College: The Six-four-four Plan at Work. New York: Harper, 1946.

MLA (8th ed.) Citation

Koos, Leonard V. Integrating High School and College: The Six-four-four Plan at Work. Harper, 1946.