Obshchai͡a khudozhestvennai͡a vystavka Dizaĭn v bolgarskom mashinostroenii (1974 : Sofia, Bulgaria)

• Obshchai͡a khudozhestvennai͡a vystavka Dizaĭn v bolgarskom mashinostroenii, Galerei͡a, Ul. Shipka 6, ii͡unʹ-ii͡ulʹ 1974 goda =