The Facts on File dictionary of environmental science /

by Wyman, Bruce C.
New York : Facts on File, 2001
New edition.

The facts on file dictionary of environmental science /

by Wyman, Bruce C.
New York : Facts on File, 2007
Third edition.

The Facts On File dictionary of environmental science /

by Stevenson, L. Harold, 1940-
New York : Facts On File, 1991

Energy use, energy savings, and cost reductions in all operating departments, City of Lake Charles /

by Young, John C.
Lake Charles, La. : Lake Charles-McNeese Urban Observatory, 1977

The Facts on File dictionary of environmental science /

New York : Facts on File, 2001
New ed.