एपीए उद्धरण

Willoughby , W. F. (1962). Principles of public administration. Central book depot.

शिकागो स्टाइल उद्धरण

Willoughby , W F. Principles of Public Administration. Allahabad: Central book depot, 1962.

एमएलए उद्धरण

Willoughby , W F. Principles of Public Administration. Central book depot, 1962.