Verma, P. S. Cell biology, genetics and ecology / P. S. Verma and V. K. Agarwal. - 3rd rev. and enl. ed. - New Delhi : S. Chand, 1977. - xii, 228 p. : ill. ; 21 cm. 344 344 Subjects--Topical Terms: Cells--Ecology--Genetics. Dewey Class. No.: 574.87 / P1c