APA (7 वां संस्करण) प्रशस्ति पत्र

Khurmi R.S & Gupta J.K. (2020). A Textbook Of Refrigeration And Air Conditioning (5th.). S.Chand And Company Limited.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Khurmi R.S और Gupta J.K. A Textbook Of Refrigeration And Air Conditioning. 5th. New Delhi: S.Chand And Company Limited, 2020.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Khurmi R.S और Gupta J.K. A Textbook Of Refrigeration And Air Conditioning. 5th. S.Chand And Company Limited, 2020.

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