APA aipamena

Kessler, C. (1993). International Scientific Cooperation, Consolidated report of activities, 1987 - 90. s.n.

Chicago Style aipamena

Kessler, C. International Scientific Cooperation, Consolidated Report of Activities, 1987 - 90. s.l: s.n, 1993.

MLA aipamena

Kessler, C. International Scientific Cooperation, Consolidated Report of Activities, 1987 - 90. s.n, 1993.

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