Cita APA (7a ed.)

Severns, W. H., & Degler, H. E. (1948). Steam, air and gas power (4th ed.). Wiley.

Cita Chicago Style (17a ed.)

Severns, Williams H., y Howard E. Degler. Steam, Air and Gas Power. 4th ed. New York: Wiley, 1948.

Cita MLA (8a ed.)

Severns, Williams H., y Howard E. Degler. Steam, Air and Gas Power. 4th ed. Wiley, 1948.