Unted States. George C. Marshall Space Flight Center. (1975). The development of a solar residential heating and cooling system. National Technical Information Service.
Lua i Stíl Chicago (17ú heag.)Unted States. George C. Marshall Space Flight Center. The Development of a Solar Residential Heating and Cooling System. Springfield, Va: National Technical Information Service, 1975.
Lua MLA (9ú heag.)Unted States. George C. Marshall Space Flight Center. The Development of a Solar Residential Heating and Cooling System. National Technical Information Service, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.