Vilanilam,J V. (1981). Thozhil Rogangal: Occupational diseases. State institute of languages.
Chicago Edition CitationVilanilam,J V. Thozhil Rogangal: Occupational Diseases. Thiruvananthapuram: State institute of languages, 1981.
MLA Edition CitationVilanilam,J V. Thozhil Rogangal: Occupational Diseases. State institute of languages, 1981.
Warning: These citations may not always be 100% accurate.