Cita APA (7th ed.)

American Library Association ALA. (1951). Friends of the library groups (4th ed.). A.L.A.

Cita Chicago (17th ed.)

American Library Association ALA. Friends of the Library Groups. 4th ed. Chicago: A.L.A, 1951.

Cita MLA (9th ed.)

American Library Association ALA. Friends of the Library Groups. 4th ed. A.L.A, 1951.