एपीए उद्धरण

Cushman, J. A. Monograph of the foraminiferal family valvulinidae.

शिकागो स्टाइल उद्धरण

Cushman, Joseph A. Monograph of the Foraminiferal Family Valvulinidae.

एमएलए उद्धरण

Cushman, Joseph A. Monograph of the Foraminiferal Family Valvulinidae.