APA (7th ed.) Citation

Twidwell, L. G. (1985). Hidrometallurgy. National Science Foundation.

Chicago Style (17th ed.) Citation

Twidwell, L. G. Hidrometallurgy. Sandy City: National Science Foundation, 1985.

MLA (9th ed.) Citation

Twidwell, L. G. Hidrometallurgy. National Science Foundation, 1985.