APA (7e ed.) Bronvermelding

Não informado. (1965). Ulrich's International Periodicals Directory: A classified guide to a selected list of current periodicals, foreign and domestic. R.R. Bowker Company.

Chicago (17e ed.) Bronvermelding

Não informado. Ulrich's International Periodicals Directory: A Classified Guide to a Selected List of Current Periodicals, Foreign and Domestic. New York: R.R. Bowker Company, 1965.

MLA (8e ed.) Bronvermelding

Não informado. Ulrich's International Periodicals Directory: A Classified Guide to a Selected List of Current Periodicals, Foreign and Domestic. R.R. Bowker Company, 1965.

Let op: Deze citaties zijn niet altijd 100% accuraat.