एपीए उद्धरण

Ritson, C. (1977). Agricultural economics: Principles and Policy. Cros by Lockwood staples.

शिकागो स्टाइल उद्धरण

Ritson, Christopher. Agricultural Economics: Principles and Policy. London: Cros by Lockwood staples, 1977.

एमएलए उद्धरण

Ritson, Christopher. Agricultural Economics: Principles and Policy. Cros by Lockwood staples, 1977.