Outdoor activities in conservation study
By: compiled by Robert M. Ring, Sidney H. Hirons [and] Craig Chase.
Contributors: Hirons, Sidney H., joint author.; Chase, Craig, joint author.; Illinois. Office of the Superintendent of Public Instruction.
Publisher: Office of the Superintendent of Public Instruction
Published: 1967
Place of publication: [Springfield, Ill
Language: eng
Number of pages: 16
Subjects: Conservation of natural resources -- Study and teaching -- Illinois.