Wulfinghoff, Donald R. Energy efficiency manual for everyone who uses energy, pays for utilities, controls energy usage, designs and builds, is interested in energy and environmental preservation Donald R. Wulfinghoff - Maryland Energy institute press 1999 - 1531 p. Includes references and index ISBN: 965792676 Subjects--Topical Terms: Energy conservationEnergy consumption Utilities Dewey Class. No.: 697 / WUL