Παραπομπή APA

National productivity council. (1964). Food preservation and canning industry. National Producctivity Council.

Παραπομπή Chicago Style

National productivity council. Food Preservation and Canning Industry. New Delhi: National Producctivity Council, 1964.

Παραπομπή MLA

National productivity council. Food Preservation and Canning Industry. National Producctivity Council, 1964.