Hop, F. U. (1989). The energy-saving house design handbook: Your super guide to earth sheltering, solar heating, and thermal construction. Prentice Hall.
Chicago Style (17th ed.) CitationHop, Frederick Uhlen. The Energy-saving House Design Handbook: Your Super Guide to Earth Sheltering, Solar Heating, and Thermal Construction. Englewood Cliffs, N.J.: Prentice Hall, 1989.
MLA (9th ed.) CitationHop, Frederick Uhlen. The Energy-saving House Design Handbook: Your Super Guide to Earth Sheltering, Solar Heating, and Thermal Construction. Prentice Hall, 1989.
Warning: These citations may not always be 100% accurate.