Stapp, W. B., & Liston, M. D. (1975). Environmental education: A guide to information sources. Gale Research Co..
Chicago Style (17th ed.) CitationStapp, William B., and Mary Dawn Liston. Environmental Education: A Guide to Information Sources. Detroit: Gale Research Co., 1975.
ציטוט MLAStapp, William B., and Mary Dawn Liston. Environmental Education: A Guide to Information Sources. Gale Research Co., 1975.
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