APA (7 वां संस्करण) प्रशस्ति पत्र

Wanigaratne, R. D. (1975). A study of communication flow in selected villages in Sri Lanka: Case study. Agrarian Research and Training Institute.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Wanigaratne, R. D. A Study of Communication Flow in Selected Villages in Sri Lanka: Case Study. Colombo: Agrarian Research and Training Institute, 1975.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Wanigaratne, R. D. A Study of Communication Flow in Selected Villages in Sri Lanka: Case Study. Agrarian Research and Training Institute, 1975.