APA (7th ed.) Citation

Hopp, A. (1922). Estimating sheet metal work. U.P.C. book company, inc..

Chicago Style (17th ed.) Citation

Hopp, Adolf. Estimating Sheet Metal Work. New York: U.P.C. book company, inc., 1922.

MLA (8th ed.) Citation

Hopp, Adolf. Estimating Sheet Metal Work. U.P.C. book company, inc., 1922.