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<br />- <br /> <br />," <br /> <br />.' <br /> <br />, <br /> <br />1<"".-,', <br />.:.:..}.:. <br /> <br />4 <br /> <br />REFERENCES (continued) <br /> <br />5. Conklin, Lal<rence. Costs and Returns for Irrigated Crop Production, <br />LOl<er South Platte Valley, Colorado, Bulletin 491A, Extension <br />Service, Colorado State University, 1975. <br /> <br />6. Blank, Herbert. "Optimal Irrigation Decisions liith Limited Water," <br />Ph.D. thesis, Colorado State University (Civil Engineering), <br />October 1975. <br />