International Congress on Glass Leningrad, R.S.F.S.R. (1988). Glass '89: XVth International Congress on Glass, Leningrad, 3-7 July 1989. "Nauka" Leningrad Branch.
Citace podle Chicago (17th ed.)International Congress on Glass Leningrad, R.S.F.S.R. Glass '89: XVth International Congress on Glass, Leningrad, 3-7 July 1989. Leningrad: "Nauka" Leningrad Branch, 1988.
Citace podle MLA (8th ed.)International Congress on Glass Leningrad, R.S.F.S.R. Glass '89: XVth International Congress on Glass, Leningrad, 3-7 July 1989. "Nauka" Leningrad Branch, 1988.
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