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Delmer L. Helgeson

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Books

A Mode of Action of Herbicides
A Mode of Action of Herbicides
David F. Van Haverbeke, M. K. McCarty, Dale G. Anderson, David I. Cook, Glenn Albert Helmers, Kenneth P. Vogel, Lowell Arthur Klepper, Dean Leroy Linscott, Delmer L. Helgeson, Gary Wayne Lentz, P. J. Mattern, Milo L. Cox, Virgil Allen Johnson

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