APA (7. basım) Alıntı

Shenton, J. P., & Meckler, A. M. (1973). Programmed learning aid for United States history. Learning Systems.

Chicago Style (17. basım) Atıf

Shenton, James Patrick, ve Alan M. Meckler. Programmed Learning Aid for United States History. Homewood, Ill: Learning Systems, 1973.

MLA (9th ed.) Atıf

Shenton, James Patrick, ve Alan M. Meckler. Programmed Learning Aid for United States History. Learning Systems, 1973.