APA (7th ed.) Citation

Skelly and Loy & Penn Environmental Consultants. (1973). Processes, procedures and methods to control pollution from mining activities. U.S. Environmental Protection Agency.

Chicago Style (17th ed.) Citation

Skelly and Loy and Penn Environmental Consultants. Processes, Procedures and Methods to Control Pollution from Mining Activities. Washington, D.C.: U.S. Environmental Protection Agency, 1973.

MLA (9th ed.) Citation

Skelly and Loy and Penn Environmental Consultants. Processes, Procedures and Methods to Control Pollution from Mining Activities. U.S. Environmental Protection Agency, 1973.