Forests for whom and for what /

por Clawson, Marion, 1905-
Publicado 1975

Economics of outdoor recreation /

por Clawson, Marion 1905-, Clawson, Marion 1905-, Knetsch, Jack Louis 1933-
Publicado 1969

Land use information : a critical survey of U.S. statistics including possibilities for greater uniformity. /

por Clawson, Marion 1905-, Clawson, Marion 1905-, Stwart, Chaeles Leslie n. 1890
Publicado 1965