एपीए उद्धरण

Hussey, R. C. (1947). Historical geology: Geologic history of North America (2nd ed.).

शिकागो स्टाइल उद्धरण

Hussey, Russell C. Historical Geology: Geologic History of North America. 2nd ed. 1947.

एमएलए उद्धरण

Hussey, Russell C. Historical Geology: Geologic History of North America. 2nd ed. 1947.