Khurmi R.S & Gupta J.K. (2018). A Textbook Of Refrigeration And Air Conditioning (5th.). S.Chand And Company Limited.
Lua i Stíl Chicago (17ú heag.)Khurmi R.S agus Gupta J.K. A Textbook Of Refrigeration And Air Conditioning. 5th. New Delhi: S.Chand And Company Limited, 2018.
Lua MLA (9ú heag.)Khurmi R.S agus Gupta J.K. A Textbook Of Refrigeration And Air Conditioning. 5th. S.Chand And Company Limited, 2018.
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