Environmental protection :

Environmental protection : regulating for results / edit. by Kenneth Chilton and Melinda Warren. - Boulder, Colo. : Westview, 1991. - xix, 190 p. ; 23 cm.

Al pie de la pasta: Center for the Study of American Business.

Incluye bibliografia.

0-8133-8273-4

HC110 / .E5 E58

Con tecnología Koha