Williams, R. S., & Feist, W. C. (1999). Water repellents and water-repellent preservatives for wood. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.
Chicago Style (17th ed.) CitationWilliams, R. Sam, and William C. Feist. Water Repellents and Water-repellent Preservatives for Wood. Madison, WI (One Gifford Pinchot Dr., Madison, 53705-2398): U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1999.
MLA (9th ed.) CitationWilliams, R. Sam, and William C. Feist. Water Repellents and Water-repellent Preservatives for Wood. U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1999.
Warning: These citations may not always be 100% accurate.