एपीए उद्धरण

Society of Economic Geologists. (1920). Economic Geology Vol.15 Nos.1-8.

शिकागो स्टाइल उद्धरण

Society of Economic Geologists. Economic Geology Vol.15 Nos.1-8. Economic Geology Publishing Co, 1920.

एमएलए उद्धरण

Society of Economic Geologists. Economic Geology Vol.15 Nos.1-8. 1920.