(1980). The standard periodical directory 1979 - 1980: The largest authoritative guide to United State and Canadian periodical ... Information on more than 65,000 publications. New York: Oxbridge communications.
Παραπομπή Chicago StyleThe Standard Periodical Directory 1979 - 1980: The Largest Authoritative Guide to United State and Canadian Periodical ... Information On More Than 65,000 Publications. New York: Oxbridge communications, 1980.
Παραπομπή MLAThe Standard Periodical Directory 1979 - 1980: The Largest Authoritative Guide to United State and Canadian Periodical ... Information On More Than 65,000 Publications. New York: Oxbridge communications, 1980.
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