TY - BOOK AU - Bortman,Marci TI - Environmental encyclopedia SN - 0787654868 (set) PY - 2003/// CY - Detroit PB - Gale/Thomson-Gale KW - Environmental sciences KW - Encyclopedias KW - Ecology KW - Earth sciences N1 - volume 1; A-M-; volume 2; N-Z ER -