India.Registrar General and Census Commissioner. (1967). Census of India 1961.Vol.VII Kerala-pt.II-b(ii)-general economic tables: Tables BV to BIX. Registrar General and Census Commissioner.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিIndia.Registrar General and Census Commissioner. Census of India 1961.Vol.VII Kerala-pt.II-b(ii)-general Economic Tables: Tables BV to BIX. Registrar General and Census Commissioner, 1967.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিIndia.Registrar General and Census Commissioner. Census of India 1961.Vol.VII Kerala-pt.II-b(ii)-general Economic Tables: Tables BV to BIX. Registrar General and Census Commissioner, 1967.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.