Παραπομπή APA

P D Thiwari & A N Sharma. (1989). Tribal ecosystem and malnutrition in India. Northern Book Centre.

Παραπομπή Chicago Style

P D Thiwari και A N Sharma. Tribal Ecosystem and Malnutrition in India. New Delhi: Northern Book Centre, 1989.

Παραπομπή MLA

P D Thiwari και A N Sharma. Tribal Ecosystem and Malnutrition in India. Northern Book Centre, 1989.