Ulrich's international periodicals directory 1988-1989. Irregular serials a. annuals. Vol. 1. Subjects A-G. -- 27th ed. -- New York : Bowker, 1988. -- 54, 1690 s. -- ISBN 0-8352-2565-8

1. periodiká ako téma 2. adresáre ako téma

05(058)(100)