TY - BOOK AU - Wilderness Conference on Earthcare Global Protection of Nature Areas, 14th Biennial Earth ED - Schofield, Edmund A. TI - Earthcare : global protection of natural areas . Proceedings U1 - 333.706 PY - 0000///xxi,838p.:ill.; 23cm.- CY - The Sierra Club and National Audubon Society PB - 1970 ER -