APA (7 वां संस्करण) प्रशस्ति पत्र

India. Labour Bureau. (1961). Report on statistical survey of absenteeism pattern among colliery workers in Jharia coal fields.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

India. Labour Bureau. Report on Statistical Survey of Absenteeism Pattern Among Colliery Workers in Jharia Coal Fields. [Simla], 1961.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

India. Labour Bureau. Report on Statistical Survey of Absenteeism Pattern Among Colliery Workers in Jharia Coal Fields. 1961.