Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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