Agarwal, S. K. Fundamentals of ecology / S. K. Agarwal - New Delhi : Ashish Publishing, c1992. - xvii, 442 p. ; ill., figs., tabs. ; 22 cm. ISBN: 817024482X LCCN: Subjects--Topical Terms: Ecology LC Class. No.: QH541 / .O313A76 1992 Dewey Class. No.: 574.5 / A261f