Singapore (City). Polytechnic. Library. Reference Dept. (1973). Pollution: A bibliography (2d ed.). Singapore Polytechnic Library.
Citace podle Chicago (17th ed.)Singapore (City). Polytechnic. Library. Reference Dept. Pollution: A Bibliography. 2d ed. [Singapore]: Singapore Polytechnic Library, 1973.
Citace podle MLA (8th ed.)Singapore (City). Polytechnic. Library. Reference Dept. Pollution: A Bibliography. 2d ed. Singapore Polytechnic Library, 1973.
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