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- 1978 ,no. 1-6. Meetings & conventions. New York : Ziff-Davis Pub., 1978. 1 zv. Mesačník. ISSN 0025-8652 [Copy count : 1, currently available 0, at library only 1]
- 1978 ,no. 7-12. Meetings & conventions. New York : Ziff-Davis Pub., 1978. 1 zv. Mesačník. ISSN 0025-8652 [Copy count : 1, currently available 0, at library only 1]