एपीए उद्धरण

Ritson,Christopher. (1977). Agricultural economics: Principles and policy. Granada Publishing.

शिकागो स्टाइल उद्धरण

Ritson,Christopher. Agricultural Economics: Principles and Policy. London: Granada Publishing, 1977.

एमएलए उद्धरण

Ritson,Christopher. Agricultural Economics: Principles and Policy. Granada Publishing, 1977.