एपीए उद्धरण

The Geological Society of America. Geological Society of America Bulletin. The Geological Society of America.

शिकागो स्टाइल उद्धरण

The Geological Society of America. Geological Society of America Bulletin. The Geological Society of America.

एमएलए उद्धरण

The Geological Society of America. Geological Society of America Bulletin. The Geological Society of America.