Raven, Peter H. Biology of plants / Peter H. Raven, Ray F. Evert, Susan E. Eichhorn. - 5th ed. - New York : Worth Pub, c1991. - xvii, 791 pages : color illustrations ; 28 cm ISBN: 0879015322 Subjects--Topical Terms: Biology LC Class. No.: QH308.2 / R19 1991