Cita APA (7th ed.)

JOHNSTON, P. M., & LIEBOWITZ, M. (1978). Advanced sheet metal skills. Delmar Publishers.

Cita Chicago (17th ed.)

JOHNSTON, Philip M., i Murray LIEBOWITZ. Advanced Sheet Metal Skills. New York: Delmar Publishers, 1978.

Cita MLA (9th ed.)

JOHNSTON, Philip M., i Murray LIEBOWITZ. Advanced Sheet Metal Skills. Delmar Publishers, 1978.