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APA-viiteU.S. Department of the Interior. Heritage Conservation and Recreation Service. (1979). The third nationwide outdoor recreation plan: Appendix 2, Survey technical report 1-5. U.S. Government Printing Office.
Chicago-tyylinen lähdeviittausU.S. Department of the Interior. Heritage Conservation and Recreation Service. The Third Nationwide Outdoor Recreation Plan: Appendix 2, Survey Technical Report 1-5. Washington, D.C.: U.S. Government Printing Office, 1979.
MLA-viiteU.S. Department of the Interior. Heritage Conservation and Recreation Service. The Third Nationwide Outdoor Recreation Plan: Appendix 2, Survey Technical Report 1-5. U.S. Government Printing Office, 1979.
Harvard-tyylinen lähdeviittausU.S. Department of the Interior. Heritage Conservation and Recreation Service. 1979. The third nationwide outdoor recreation plan: Appendix 2, Survey technical report 1-5. Washington, D.C.: U.S. Government Printing Office.