APA (7th ed.) Citation

Kohl, H. R. (1970). The open classroom : a practical guide to a new way of teaching / by H.R. Kohl: A practical guide to a new way of teaching. Methuen.

Chicago Style (17th ed.) Citation

Kohl, H. R. The Open Classroom : A Practical Guide to a New Way of Teaching / by H.R. Kohl: A Practical Guide to a New Way of Teaching. Methuen, 1970.

MLA (9th ed.) Citation

Kohl, H. R. The Open Classroom : A Practical Guide to a New Way of Teaching / by H.R. Kohl: A Practical Guide to a New Way of Teaching. Methuen, 1970.

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