एपीए उद्धरण

Spar, J. Earth sea and air: :A survey of geophysical sciences.

शिकागो स्टाइल उद्धरण

Spar, Jerome. Earth Sea and Air: :A Survey of Geophysical Sciences.

एमएलए उद्धरण

Spar, Jerome. Earth Sea and Air: :A Survey of Geophysical Sciences.