Παραπομπή σε μορφή APA (7η εκδ.)

Singh, A. K., & Singh, U. P. (1999). Human ecology and development in India. APH Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Singh, Awadhesh Kumar, και Udai Pratap Singh. Human Ecology and Development in India. New Delhi: APH Publishing, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Singh, Awadhesh Kumar, και Udai Pratap Singh. Human Ecology and Development in India. APH Publishing, 1999.