United States. Soil Conservation Service, Chapman, E. W., & Waters, R. E. (1976). A teacher's manual for outdoor classrooms: How to plan, develop, and use them. [U.S. Dept. of Agriculture, Soil Conservation Service].
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service, E. Wayne Chapman, and Robert E. Waters. A Teacher's Manual for Outdoor Classrooms: How to Plan, Develop, and Use Them. [Auburn, Ala.]: [U.S. Dept. of Agriculture, Soil Conservation Service], 1976.
MLA (9th ed.) CitationUnited States. Soil Conservation Service, et al. A Teacher's Manual for Outdoor Classrooms: How to Plan, Develop, and Use Them. [U.S. Dept. of Agriculture, Soil Conservation Service], 1976.
Warning: These citations may not always be 100% accurate.