APA

Kohl H. R., . (1969). The open classroom: a practical guide to a new way of teaching. [New York: New York Review]; distributed by Random House, Inc.

Chicago

Kohl Herbert R, . 1969. The open classroom: a practical guide to a new way of teaching. [New York: New York Review]; distributed by Random House, Inc.

Harvard

Kohl H. R., . (1969). The open classroom: a practical guide to a new way of teaching. [New York: New York Review]; distributed by Random House, Inc.

MLA

Kohl Herbert R, . The open classroom: a practical guide to a new way of teaching. [New York: New York Review]; distributed by Random House, Inc. 1969.