Não informado. (2007). Gluckauf Mining Reporter. Verlag Gluckauf GmbH.
Chicago Style (17th ed.) CitationNão informado. Gluckauf Mining Reporter. Essen, Alemanha: Verlag Gluckauf GmbH, 2007.
MLA (8th ed.) CitationNão informado. Gluckauf Mining Reporter. Verlag Gluckauf GmbH, 2007.
Warning: These citations may not always be 100% accurate.