Lal, R. B., & Seal, S. C. (1949). General rural health survey, Singur Health Centre, 1944. Printed by Govt. of India Press.
Lua i Stíl Chicago (17ú heag.)Lal, Ram Behari, agus S. C. Seal. General Rural Health Survey, Singur Health Centre, 1944. Calcutta: Printed by Govt. of India Press, 1949.
Lua MLA (8ú heag.)Lal, Ram Behari, agus S. C. Seal. General Rural Health Survey, Singur Health Centre, 1944. Printed by Govt. of India Press, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.