APA-referens (7:e uppl.)

Butler, C. H. (1984). Cogeneration: Engineering, design, financing, and regulatory compliance. McGraw-Hill.

Chicago-referens (17:e uppl.)

Butler, Charles H. Cogeneration: Engineering, Design, Financing, and Regulatory Compliance. New York: McGraw-Hill, 1984.

MLA-referens (9:e uppl.)

Butler, Charles H. Cogeneration: Engineering, Design, Financing, and Regulatory Compliance. McGraw-Hill, 1984.