Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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