Soil, its uses and conservation.
By: [By] George W. Graves, professor of agriculture and biology, Fresno state college. Including a curriculum unit developed at the Corralitos elementary school, Santa Cruz county. Published by California state Department of education, Sacramento.
Contributors: California. Dept. of Education.
Series: [California. Committee on science guide for elementary schools] Science guide for elementary schools.; vol. IV, no. 2
Publisher: California state printing office, G. H. Moore, state printer
Published: 1937
Place of publication: [Sacramento
Language: eng
Number of pages: 54
Subjects: Soils -- California.; Soil conservation -- California.
Notes: Bibliography: p. 52-54.
Cover-title.