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Integrated control of weeds
edited by J. D. Fryer, Shooichi Matsunaka...
Bok Språk ikke angitt 1977
Weed control handbook. 1. Principles including plant growth regulators
issued by the British Crop Protection Cou...
Bok Engelsk 1977
Herbicides in British fruit growing
Fryer, J.D.
Bok Engelsk 1966