Barbour, Michael G. Terrestrial plant ecology / Michael G. Barbour, Jack H. Burk, Wanna D. Pitts - 2 ed. - 634 p. : il. ; 24 cm. ISBN: 0805305416 Subjects--Topical Terms: BOTANICABOTANICA--NORTEAMERICAECOLOGIA Dewey Class. No.: 581.5264 / B36t 1987