Text ( visual ) : unmediated Defending the environment : a strategy for citizen action / Joseph L. Sax ; Introduction by George McGovern. -- 1st ed. -- New York : Knopf , 1971, c1970. -- xix, 252, vi p. ; 22 cm. -- Includes index. -- ISBN 0394423518 ; (BA2182667X) ; https://ci.nii.ac.jp/ncid/BA2182667X Author Heading(s): Sax, Joseph L.. -- Classification(s): LCC : HC110.E5 ; DC : 301.3/1/0973. -- Subject Heading(s): LCSH : Environmental policy -- United States ; LCSH : Environmental law -- United States