Browsing by Author "Heintz, Robert"
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Item Needle dieback in evergreens(North Dakota State University, 1978) Stack, Robert W.; Heintz, Robert; Lamey, H. ArthurItem Pruning Trees(North Dakota State University, 1968) Heintz, Robert; Hoag, Donald G.; Askew, Robert G. (Robert Gordon)Item Treat Fence Posts for Longer Life(North Dakota State University, 1987) Heintz, RobertItem Using old windbreaks for outdoor classrooms(North Dakota State University, 1982) Heintz, Robert