एपीए उद्धरण

Society of Economic Geologists. (1926). Economic Geology Vol.21 Nos.1-8.

शिकागो स्टाइल उद्धरण

Society of Economic Geologists. Economic Geology Vol.21 Nos.1-8. Economic Geology Publishing Co, 1926.

एमएलए उद्धरण

Society of Economic Geologists. Economic Geology Vol.21 Nos.1-8. 1926.