TY - BOOK ID - 128822221 TI - Americans and environment : the controversy over ecology PY - 1971 SN - 0669616141 PB - Lexington (Mass.) : Heath, DB - UniCat KW - Ecology. KW - Nature KW - Effect of human beings on. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128822221 AB - ER -