Roberts, M. B. V. 1935- Biology for life. - 2nd ed. - Walton-on-Thames : Nelson, 1986. - 403p Previous ed., 1981. ISBN: 0174480962 No price 9780174480969 Nat. Bib. No.: GB8952721 bnb Subjects--Topical Terms: Biology. Subjects--Index Terms: Biology