APA-viite

Singh, I. P., & Tiwari, S. C. (1980). Man and his environment. Concept.

Chicago-tyylinen lähdeviittaus

Singh, Indera P., ja Surendra Chandra Tiwari. Man and His Environment. New Delhi: Concept, 1980.

MLA-viite

Singh, Indera P., ja Surendra Chandra Tiwari. Man and His Environment. Concept, 1980.