1. Crimm, R. 1976. Basic water monitoring program. US Environmental Protection Agency, report no. EPA 440/9-76-025, Washington, DC. 51 pp.
2. Deland, M. L. 1982. Regulatory focus: environmental auditing.Environmental Science and Technology 16:509A.
3. Herricks, E. E. 1982. Bioassessment of Whitewood Creek, Lawrence and Meade Counties, South Dakota. Homestake Mining Co., Lead, SD.
4. Herricks, E. E. 1983. Aspects of monitoring in river basin management. Proceedings of the Third River Basin Conference, 4–7 July 1983. International Association of Water Pollution Research, York, England.Water Science and Technology 16:259–274.
5. Janardan, K. G. 1982. Statistical sampling for accounting and auditing professionals. Sangamon State University Bookstore, Springfield, IL.