Environmental engineering /
Ray, Bill T.
Environmental engineering / by Bill T. Ray. - Boston, Mass. : PWS, 1995. - xix, 496 p. : ill. - PWS Series in Engineering. .
Includes bibliographical references and index. Contents : Laws and regulations--Ecology and the environment.
0534206522
Environmental engineering.
Environmental sciences.
Environmental engineering / by Bill T. Ray. - Boston, Mass. : PWS, 1995. - xix, 496 p. : ill. - PWS Series in Engineering. .
Includes bibliographical references and index. Contents : Laws and regulations--Ecology and the environment.
0534206522
Environmental engineering.
Environmental sciences.