APA-referens (7:e uppl.)

Hays, J. W. (1913). How to cut your coal bill. A.W. Shaw Company.

Chicago-referens (17:e uppl.)

Hays, Joseph W. How to Cut Your Coal Bill. London: A.W. Shaw Company, 1913.

MLA-referens (9:e uppl.)

Hays, Joseph W. How to Cut Your Coal Bill. A.W. Shaw Company, 1913.