Wanigaratne, R. D. (1975). A study of communication flow in selected villages in Sri Lanka: Case study. Agrarian Research and Training Institute.
Citace podle Chicago (17th ed.)Wanigaratne, R. D. A Study of Communication Flow in Selected Villages in Sri Lanka: Case Study. Colombo: Agrarian Research and Training Institute, 1975.
Citace podle MLA (9th ed.)Wanigaratne, R. D. A Study of Communication Flow in Selected Villages in Sri Lanka: Case Study. Agrarian Research and Training Institute, 1975.
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