APA (7. basım) Alıntı

Hopkins, A. L. (1943). Periscope peeks at the world above. Our Sunday Visitor.

Chicago Style (17. basım) Atıf

Hopkins, A. L. Periscope Peeks at the World Above. Huntington, Ind.: Our Sunday Visitor, 1943.

MLA (8th ed.) Atıf

Hopkins, A. L. Periscope Peeks at the World Above. Our Sunday Visitor, 1943.