ambasht, r. s. A TEXT BOOK OF PLANT ECOLOGY [[Book] /] R . S. ambash , N. K. AMBASHT. - 14 ed. - NEW DLHI : cbs publishers & distributors, 2004. - 427 p. : ill; ; 21 cm. ISBN: 8123908644 Subjects--Topical Terms: Plant ecology. Dewey Class. No.: 581.7 National Library of Medicine Call No.: 581.7 / AT