एपीए उद्धरण

Schumpeter, J. A. (1951). Imperialism and social classes.

शिकागो स्टाइल उद्धरण

Schumpeter, Joseph A. Imperialism and Social Classes. 1951.

एमएलए उद्धरण

Schumpeter, Joseph A. Imperialism and Social Classes. 1951.