Kircher, H. B., Wallace, D. L., & Gore, D. J. (1992). Our natural resources and their conservation (7th ed.). Danville, Ill.: Interstate Publishers.
Chicago Style CitationKircher, Harry B., Donald L. Wallace, and Dorothy J. Gore. Our Natural Resources and Their Conservation. 7th ed. Danville, Ill.: Interstate Publishers, 1992.
MLA CitationKircher, Harry B., Donald L. Wallace, and Dorothy J. Gore. Our Natural Resources and Their Conservation. 7th ed. Danville, Ill.: Interstate Publishers, 1992.
Warning: These citations may not always be 100% accurate.