Agarwal, G.P.. Crop epidemics,microbes and ecosystem conservation / G.P. Agarwal, S.K. Hasija. - New Delhi : Narendra Publishing House , 1994. - xi,235p. : Ills. ; 26cm. . NULL ISBN: 8185375224 NULL Subjects--Index Terms: PLANT DISEASES-EPIDEMICS Dewey Class. No.: 632.3 / AGA/C