Acid mine pollution effects on lake biology,
by Ronald W. Smith and David G. Frey. [Prepared] for the Environmental Protection Agency.
APA Citation
Smith, R. W., Frey, D. G. (David Grover)., United States. Environmental Protection Agency. (1974). Acid mine pollution effects on lake biology. [Washington: U.S. Environmental Protection Agency].
MLA Citation
Smith, Ronald W, David G. (David Grover) Frey, and United States. Environmental Protection Agency. Acid Mine Pollution Effects On Lake Biology. [Washington: U.S. Environmental Protection Agency], 1974.
Warning: These citations may not always be complete (especially for serials).