Citazione Stile APA (7a Edizione)
(1986). Urlich's international periodicals directory: A classified guide to current periodicals, foreign and domestic 1986-1987 (25th ed.). Bowker.
Citazione stile Chigago Style (17a edizione)
Urlich's International Periodicals Directory: A Classified Guide to Current Periodicals, Foreign and Domestic 1986-1987. 25th ed. New York: Bowker, 1986.
Citatione MLA (9a ed.)
Urlich's International Periodicals Directory: A Classified Guide to Current Periodicals, Foreign and Domestic 1986-1987. 25th ed. Bowker, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.