Barbour, M.G. . Terrestrial plant ecology / by M.G. Barbour, J.H. Burk and W.D. Pitts. - London : Cummings Publishing Co. Inc , 1980 - 604p ; ISBN: 0-8053-0540-8 Subjects--Topical Terms: Botany Dewey Class. No.: I:5 / M0