APA (7. basım) Alıntı

Willging, E. P. (1937). The Index to American Catholic pamphlets. Catholic Library Service.

Chicago Style (17. basım) Atıf

Willging, Eugene P. The Index to American Catholic Pamphlets. [Saint Paul, Minn.: Catholic Library Service, 1937.

MLA (8th ed.) Atıf

Willging, Eugene P. The Index to American Catholic Pamphlets. Catholic Library Service, 1937.