Παραπομπή σε μορφή APA (7η εκδ.)

Hafner, A. W. (1998). Descriptive statistical techniques for librarians (2nd ed.). American Library Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hafner, Arthur Wayne. Descriptive Statistical Techniques for Librarians. 2nd ed. Chicago: American Library Association, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hafner, Arthur Wayne. Descriptive Statistical Techniques for Librarians. 2nd ed. American Library Association, 1998.