IEA Coal Industry Advisory Board. (1985). Coal quality and ash characteristics: A study. OECD ; OECD Publications and Information Center, distributor.
Chicago Style (17. basım) AtıfIEA Coal Industry Advisory Board. Coal Quality and Ash Characteristics: A Study. Paris : Washington, D.C.: OECD ; OECD Publications and Information Center, distributor, 1985.
MLA (8th ed.) AtıfIEA Coal Industry Advisory Board. Coal Quality and Ash Characteristics: A Study. OECD ; OECD Publications and Information Center, distributor, 1985.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..