APA-viite

Singh, K., & Purohit, S. (1995). Plant productivity under environmental stress. Agro Botanical Publishers.

Chicago-tyylinen lähdeviittaus

Singh, Karan, ja S.S Purohit. Plant Productivity Under Environmental Stress. Bikaner: Agro Botanical Publishers, 1995.

MLA-viite

Singh, Karan, ja S.S Purohit. Plant Productivity Under Environmental Stress. Agro Botanical Publishers, 1995.