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Book dossier
by Burton Verne Barnes
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Four fish
Paul Greenberg
Biological Control Of Rice Diseases
Samuel S. Gnanamanickam
Cultural practices and infectious crop diseases
J. Palti
Weeds, Control Without Poisons
Charles Walters
Greenberg, Paul
The biology, and the chemical and cultural control of Canada thistle (Cirsium arvense)
V. Christine Kossatz
Black stain root disease of conifers
P.F. Hessburg
Controlling weeds with fewer chemicals
Craig Cramer
Süngerler ve süngercilik