एपीए उद्धरण

Raistric, A. (1939). Nature and origin of coal and coal seams. The English University press.

शिकागो स्टाइल उद्धरण

Raistric, A. Nature and Origin of Coal and Coal Seams. LOndon: The English University press, 1939.

एमएलए उद्धरण

Raistric, A. Nature and Origin of Coal and Coal Seams. The English University press, 1939.