APA (7th ed.) Citation

Keyes, H. E. (1925). Differential flotation of copper and iron sulphides. Engineering & Mining Journal (00958948), 120, 135.

Chicago Style (17th ed.) Citation

Keyes, H. E. "Differential Flotation of Copper and Iron Sulphides." Engineering & Mining Journal (00958948) 120 (1925): 135.

MLA (9th ed.) Citation

Keyes, H. E. "Differential Flotation of Copper and Iron Sulphides." Engineering & Mining Journal (00958948), vol. 120, 1925, p. 135.

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