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5 References <br />Beck, K.G., S.K. McDonald, S.J. Nissen, and P.H. Westra. 1998. 1998 Colorado <br />Buffington, Elizabeth J., and Sandra K. McDonald. General: Colorado Commercial <br />Pesticide Application and Safety Training Study Guide. Fort Collins, CO: Colorado State <br />U Environmental and Pesticide Education Program, 2002. Print. <br />Bussan, A.J., T.D. Whitson, S.A. Dewey, and M.A. Trainor. 2001. Weed Management <br />Handbook: 2001-2002. Cooperative Extension Services of Montana, Utah, and Wyoming <br />Colorado State University Cooperative Extension, Weed Management Guide for Field <br />and Vegetable Crops. Publication #XCM-205, Fort Collins, CO. <br />Colorado Weed Management Association, Noxious Weeds of Colorado, 10th Edition. <br />2009. <br />"Colorado Noxious Weed Act." Colorado The Official Web Portal. Colorado Department <br />of Agriculture, n.d. Web. 8 Jan. 2015. <br />https://www.colorado.gov/pacific/agconservation/noxiousweeds <br />Thornton, Bruce J., H.D. Harrington, and R.L. Zimdahl. 1974. Weeds of Colorado. <br />Colorado State University Experiment Station, Bulletin 514-5. Fort Collins, CO. <br />Whitson, Tom D., ed. Weeds of the West. 9th Edition. 2001. The Western Society of <br />Weed Science, Western United States Land Grant Universities Cooperative Extension <br />Services, Newark, CA. <br />Cresson Project Weed Management Plan 8 <br />