APA (7th ed.) Citation

Koos, L. V. (1931). Private and public secondary education. The University of Chicago Press.

Chicago Style (17th ed.) Citation

Koos, Leonard V. Private and Public Secondary Education. The University of Chicago Press, 1931.

MLA (8th ed.) Citation

Koos, Leonard V. Private and Public Secondary Education. The University of Chicago Press, 1931.

Warning: These citations may not always be 100% accurate.