Mellanby, Helen Animal life in fresh water : a guide to fresh-water invertebrates / by Helen Mellanby ; with a foreword by L. E. S. Eastham. - 6th ed., revised and reset. - London : Chapman and Hall, c1963. - viii, 308 p. : il. ISBN: 0412110903 LCCN: 75017181 Nat. Bib. No.: GB76-04063 Subjects--Topical Terms: Animais de água doce.Invertebrados. Dewey Class. No.: 592.0929