APA (7e ed.) Bronvermelding
(1986). Urlich's international periodicals directory: A classified guide to current periodicals, foreign and domestic 1986-1987 (25th ed.). Bowker.
Chicago (17e ed.) Bronvermelding
Urlich's International Periodicals Directory: A Classified Guide to Current Periodicals, Foreign and Domestic 1986-1987. 25th ed. New York: Bowker, 1986.
MLA (9e ed.) Bronvermelding
Urlich's International Periodicals Directory: A Classified Guide to Current Periodicals, Foreign and Domestic 1986-1987. 25th ed. Bowker, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.