1. Efficient Use of Energy, APS Studies on the More Efficient Use of Energy, edited by K. W. Ford et al. (New York, A.I.P. 1975).
2. In addition to the references given in Section 1 of thePrincipal Conclusions, see: (a) Regional Conceptual Design and Analysis Studies for Residential Photovoltaic Systems, Final Report, GE Space Division for Sandia Laboratories, DOE report #SAND78-7039 (2 vols., 1979)
3. and (b) Application of Solar Technology to Today's Energy Needs, Office of Technology Assessment reports OTA-E-66 (vol. 1) and OTA-E-77 (1978).