APA (7 वां संस्करण) प्रशस्ति पत्र

Singh. Avtar and Kaur , H. (2017). Introduction to Labour and Industrial Law (12th.). Lexis Nexis.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh. Avtar and Kaur , Harpreet. Introduction to Labour and Industrial Law. 12th. Gurgaon: Lexis Nexis, 2017.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Singh. Avtar and Kaur , Harpreet. Introduction to Labour and Industrial Law. 12th. Lexis Nexis, 2017.