KRAUSKOPF, K. B. (1967). Introduction to Geochemistry. McGraw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)KRAUSKOPF, Konrad B. Introduction to Geochemistry. McGraw-Hill Book Company, 1967.
Lua MLA (8ú heag.)KRAUSKOPF, Konrad B. Introduction to Geochemistry. McGraw-Hill Book Company, 1967.
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