Robert, E. . .. (1950). Extraction of Non-ferrous metals. Temple press ltd Bowling Green lane.
Čikaški stil citiranjaRobert, E.R. Extraction of Non-ferrous Metals. London: Temple press ltd Bowling Green lane, 1950.
MLA način citiranjaRobert, E.R. Extraction of Non-ferrous Metals. Temple press ltd Bowling Green lane, 1950.
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