Hussain,Anwar Pechenik's Biology Of The Invertebrates - 18th ed. - New Delhi Rajan Jain 2026 - 606p. ISBN: 978-93-7302-357-1 Subjects--Uniform Titles: --Natural sciences & mathematics Subjects--Topical Terms: AnimalsInvertebrates Dewey Class. No.: 592 / PEC-B