APA (7th ed.) Citation

(1928). Classification of iron and steel scrap. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Classification of Iron and Steel Scrap. [Washington?]: U.S. G.P.O., 1928.

MLA (9th ed.) Citation

Classification of Iron and Steel Scrap. U.S. G.P.O., 1928.