||Local watershed problem studies : elementary school curricula /
|| [publisher not identified],
Land use--Environmental aspects--Study and teaching (Elementary) ;
Soil conservation--Study and teaching (Elementary) ;
Water conservation--Study and teaching (Elementary)
||vii, 148 pages : illustrations ; 28 cm
"Local Watershed Problem Studies was a cooperative endeavor ... to assist teachers in the development and dissemination of curricula concerning soil and water resources." Project Director : Vicki K. Vine. Includes bibliographical references (page 148).