Earth sheltering : the form of energy and the energy of form / editor, T. Lance Holthusen ; author, Edward R. Frenette for the American Underground-Space Association, in conjunction with their 1981 design competition. Frenette, Edward R. (Edward Russell), Holthusen, T. Lance, American Underground-Space Association. Earth sheltered houses Design and construction. TH4819.E27 E4 1981 550 19 HOE New York : Pergamon Press, c1981. c1981. 1981 Text x, 245 p. : eng