P.Parvatha Reddy Crop Protection Ecofriendly Approaches - Houston Studium Press, LLC 2012 - 355p P.Parvatha Reddy: Crop Protection Ecofriendly Approaches. Houston. Studium Press, LLC, 2012. 1-933699-91-4--(632.9RED) ENGLISH ISBN: 1-933699-91-4 Dewey Class. No.: 632.9 / RED