National environmental policies :  a comparative study of capacity-building : with a data appendix international profiles of changes since 1970 / 
Martin Janicke, Helmut Widner, eds. in collaboration with H. Jorgens 
 - 320 páginas 
<br/><br/><label>ISBN: </label>3540615199 (papel alcalino) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Política ambiental--Aspectos politicos--Estudios<br/>Administración ambiental--Aspectos politicos--Estudios
<br/><br/><label>LC Class. No.: </label>GE170  / N37