Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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