Singh, O.P.. Dictionary of entomology Plant pathology and hematology / O.P. Singh, S.K. Srivastava. - New Delhi : Concept Publishing , 1998. - 459p. : ills,fig ; 22cm . NULL ISBN: 8170226732 Rs.600/- Subjects--Index Terms: BIOLOGY -DICTIONARIES Dewey Class. No.: 570.03 / SIN/D