Environment :
Asthana, D. K.
Environment : problems and solutions / D. K. Asthana, Meera Asthana. - New Delhi : S. Chand & Company Ltd, c1998. - xii, 323 p. : ill. ; 24 cm.
Includes bibliographical references and index.
8121916542
Environmental protection engineering.
628
Environment : problems and solutions / D. K. Asthana, Meera Asthana. - New Delhi : S. Chand & Company Ltd, c1998. - xii, 323 p. : ill. ; 24 cm.
Includes bibliographical references and index.
8121916542
Environmental protection engineering.
628