Conservation education
By: written and compiled by the Federal Writers' Project, Works Progress Administration, Commonwealth of Pennsylvania
Series: Bulletin (Pennsylvania. Dept. of Public Instruction) -- 214; Bulletin (Pennsylvania. Department of Public Instruction) -- 214
Publisher: Department of Public Instruction, Commonwealth of Pennsylvania
Published: 1939
Place of publication: Harrisburg
Language: eng
Number of pages: 108
Subjects: Conservation of natural resources
Notes: Bibliography: p. 106-108.