Environmental Protection Agency. Extraction and beneficiation of ores and minerals (Volume 4. Copper).
Chicago Style (17. basım) AtıfEnvironmental Protection Agency. Extraction and Beneficiation of Ores and Minerals (Volume 4. Copper).
MLA (9th ed.) AtıfEnvironmental Protection Agency. Extraction and Beneficiation of Ores and Minerals (Volume 4. Copper).
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..