1. Richard. Bailey, 1976 . From interview with Mr. Bailey, Director, Bureau of Enforcement, Virginia State Water Control Board, August 17.
2. R.J. Cole, and P. Sommers . 1981 . Complying with Government Requirements: The Costs to Small and Larger Businesses, Final Report for U.S. Small Business Administration, Battelle Human Affairs Research Center (Grant No. SB-1A-0004-01-0).