APA aipamena

Johnson, E. A., & Michael, R. E. (1958). Principles of teaching. Allyn and Bacon.

Chicago Style aipamena

Johnson, Earl A., and Ruby Eldon Michael. Principles of Teaching. Boston: Allyn and Bacon, 1958.

MLA aipamena

Johnson, Earl A., and Ruby Eldon Michael. Principles of Teaching. Allyn and Bacon, 1958.