APA استشهاد

National productivity council. (1964). Materials handling in West Germany Britain and USA. National productivity council.

استشهاد بنمط شيكاغو

National productivity council. Materials Handling in West Germany Britain and USA. New Delhi: National productivity council, 1964.

MLA استشهاد

National productivity council. Materials Handling in West Germany Britain and USA. National productivity council, 1964.