R R Bowker company. (1982). Ulrich' s international periodicals directory: A bowker serials bibilography,.v.1: A-M (21.). New york.
Chicago Edition CitationR R Bowker company. Ulrich' S International Periodicals Directory: A Bowker Serials Bibilography,.v.1: A-M. 21. New york, 1982.
MLA Edition CitationR R Bowker company. Ulrich' S International Periodicals Directory: A Bowker Serials Bibilography,.v.1: A-M. 21. New york, 1982.
Warning: These citations may not always be 100% accurate.