Javna, John. 30 simple energy things you can do to save the earth. [electronic resource] . — [San Francisco, Calif.?] : [Berkeley, Calif.] : : Pacific Gas & Electric ; : Earth Works Group,, c1990.. — 64 p. ; 21 cm.
Authors: John Javna, Seth Zuckerman, Chris Calwell.
"Seattle City Light publications": p. 64.
$3.95
Energy conservation. Conservation of natural resources.