Patel, G.A . Estimation of pesticide demand : an evaluation of methodologies / by G.A.Patel,U.K. Srivastava and K.R.Pichholiya. - New Delhi : Oxford and IBH Publishing , 1983. - xii, 123p. : Tables,charts ; 24cm. . NULL ISBN: NULL (Hb) Subjects--Index Terms: AGRICULTURE PESTICIDE Dewey Class. No.: 632.95 / PAT/E