Manual for outdoor laboratories;
the development and use of schoolgrounds as outdoor laboratories for teaching science and conservation /
Richard L. Weaver, editor.

APA Citation

National Association of Biology Teachers. National Conservation Committee., Weaver, R. Lee. (1959). Manual for outdoor laboratories: the development and use of schoolgrounds as outdoor laboratories for teaching science and conservation. Danville, Ill.: Interstate Printers and Publishers.

MLA Citation

National Association of Biology Teachers. National Conservation Committee, and Richard Lee Weaver. Manual for Outdoor Laboratories: the Development And Use of Schoolgrounds As Outdoor Laboratories for Teaching Science And Conservation. Danville, Ill.: Interstate Printers and Publishers, 1959.