L. S. Sherwin

Causes of Acidification of Four Streams on Laurel Hill in Southwestern Pennsylvania

R. Dinicola, W. Sharpe, W. G. Kimmel, 1984 .

Keystone Projects: Service-Learning Practica in Watershed Stewardship

Kenneth Tamminga, Lysle S. Sherwin, K. Tamminga, 2001 .