APA

Dreikurs R., . (1968). Psychology in the classroom: a manual for teachers. New York: Harper & Row.

Chicago

Dreikurs Rudolf, . 1968. Psychology in the classroom: a manual for teachers. New York: Harper & Row.

Harvard

Dreikurs R., . (1968). Psychology in the classroom: a manual for teachers. New York: Harper & Row.

MLA

Dreikurs Rudolf, . Psychology in the classroom: a manual for teachers. New York: Harper & Row. 1968.