WELLMER F W. (2002). CYCLE MANAGEMENT IN THE RAW MATERIALS INDUSTRY. E.SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG.
Čikaški stil citiranja (17. izdanje)WELLMER F W. CYCLE MANAGEMENT IN THE RAW MATERIALS INDUSTRY. STUTTGART: E.SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG, 2002.
MLA način citiranja (9. izdanje)WELLMER F W. CYCLE MANAGEMENT IN THE RAW MATERIALS INDUSTRY. E.SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG, 2002.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.