APA (7th ed.) Citation

Bayard, K. O., & Sullivan, J. D. (1931). Extraction of soluble copper from ores in leaching by percolation. [publisher not identified].

Chicago Style (17th ed.) Citation

Bayard, Kenneth O., and John D. Sullivan. Extraction of Soluble Copper from Ores in Leaching by Percolation. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Bayard, Kenneth O., and John D. Sullivan. Extraction of Soluble Copper from Ores in Leaching by Percolation. [publisher not identified], 1931.