APA (7th ed.) Citation

Kohl, H. R. (1969). The open classroom; a practical guide to a new way of teaching. New York Review.

Chicago Style (17th ed.) Citation

Kohl, Herbert R. The Open Classroom; a Practical Guide to a New Way of Teaching. [New York: New York Review, 1969.

MLA (9th ed.) Citation

Kohl, Herbert R. The Open Classroom; a Practical Guide to a New Way of Teaching. New York Review, 1969.