APA-viite

Subramanian, S. (1977). Bio-gas systems in Asia. Development Insititute.

Chicago-tyylinen lähdeviittaus

Subramanian, S.K. Bio-gas Systems in Asia. New Delhi: Development Insititute, 1977.

MLA-viite

Subramanian, S.K. Bio-gas Systems in Asia. Development Insititute, 1977.