San Francisco: Friends of the Earth, 1974. hardcover. Photographs by James Valentine, introduction by Eugene Odum and John P. Milton, foreword by David R. Brower. Edited by Kenneth Brower. Illustrated throughout with color photographs, some double-page. 144pp. Small folio, green cloth, d.w. San Francisco: Friends of the Earth, 1974. A fine copy in a very good(+) dust wrapper. near fine / very good(+).