Cita APA (7th ed.)

Hornung, W. J. (1982). Plumbing and heating. Prentice-Hall.

Cita Chicago (17th ed.)

Hornung, William J. Plumbing and Heating. Englewood Cliffs, New Jersey: Prentice-Hall, 1982.

Cita MLA (9th ed.)

Hornung, William J. Plumbing and Heating. Prentice-Hall, 1982.