Παραπομπή σε μορφή APA (7η εκδ.)

(1997). Ulrich's international periodicals directory 1997: Including irregular serials & annuals (35th edition.). Bowker.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. New York: Bowker, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. Bowker, 1997.