APA-viite

SINGH M.K. (1989). ENVIRONMENTAL CHANGES AND DEVELOPMENT. CHUGH PUBLICATIONS.

Chicago-tyylinen lähdeviittaus

SINGH M.K. ENVIRONMENTAL CHANGES AND DEVELOPMENT. ALLAHABAD: CHUGH PUBLICATIONS, 1989.

MLA-viite

SINGH M.K. ENVIRONMENTAL CHANGES AND DEVELOPMENT. CHUGH PUBLICATIONS, 1989.