Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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