Clawson, Marion 1905-1998 creator Knetsch, Jack L. 1933- Resources for the Future text Baltimore Published for Resources for the Future by Johns Hopkins Press c1966 monographic xx, 328 p. illus. 24 cm. by Marion Clawson and Jack L. Knetsch. Bibliographical footnotes. Outdoor recreation industry GV182.2 .C52 333.7/8/0973 0801813026 66016040 UOEL 000 20150821144549.0 3587507