Description
Hildebrand, Alexander. "Sierra Club Leader and Critic: Perspective on Club Growth, Scope, and Tactics, 1950s-1970s." Litton, Martin. "Sierra Club Director and Uncompromising Preservationist, 1950s-1970s." Sherwin, Raymond J. "Conservationist, Judge, and Sierra Club President, 1960s-1970s." Snyder, Theodore A., Jr. "Southeast Conservation Leader and Sierra Club President, 1960s-1970s."