TY - BOOK AU - x, x AU - Cherrett,J.M. TI - Ecological Concepts: The Contribution of Ecology to an Undersrtanding of The Natural World SN - 0632025697 U1 - 574.5/E17 PY - 1989/// CY - Oxford; Boston PB - Blackwell Scientific Pub. KW - Ecology - Congresses N1 - Includes ER -