APA (7th ed.) Citation

United States. Department of Commerce. (1925). Metallurgical treatment of zinc-retort residues. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Commerce. Metallurgical Treatment of Zinc-retort Residues. [Washington]: GPO, 1925.

MLA (9th ed.) Citation

United States. Department of Commerce. Metallurgical Treatment of Zinc-retort Residues. GPO, 1925.

Warning: These citations may not always be 100% accurate.