एपीए उद्धरण

Schoppa, R. K. Revolution and its past. Routledge.

शिकागो स्टाइल उद्धरण

Schoppa, R. Keith. Revolution and Its Past. Routledge.

एमएलए उद्धरण

Schoppa, R. Keith. Revolution and Its Past. Routledge.