What works: Documenting energy conservation in buildings: Edited by Jeffrey Harris and co-edited by Carl Blumstein, American council for an energy efficient economy, 1001 Connecticut Avenue, NW, Suite 530, Washington, DC 20036; 1984: pp.562; price: $54.95 (hardcover), ISBN 0-918249-01-5; $29.95 (softcover), ISBN 0-91824902-3.