IEA Solar Heating and Cooling Programme & Duff, W. S. (1983). Eight evacuated collector installations: A report from the International Energy Agency Solar Heating and Cooling Programme. American Solar Energy Society.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিIEA Solar Heating and Cooling Programme এবং William S. Duff. Eight Evacuated Collector Installations: A Report from the International Energy Agency Solar Heating and Cooling Programme. Boulder, N.Y.: American Solar Energy Society, 1983.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিIEA Solar Heating and Cooling Programme এবং William S. Duff. Eight Evacuated Collector Installations: A Report from the International Energy Agency Solar Heating and Cooling Programme. American Solar Energy Society, 1983.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.