Demographic Research Centre (Kerala, India). (1977). Demographic report of Kerala, 1906-61, with an addendum for 1971. Demographic Research Centre, Bureau of Economics and Statistics, Govt. of Kerala.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDemographic Research Centre (Kerala, India). Demographic Report of Kerala, 1906-61, with an Addendum for 1971. Trivandrum: Demographic Research Centre, Bureau of Economics and Statistics, Govt. of Kerala, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDemographic Research Centre (Kerala, India). Demographic Report of Kerala, 1906-61, with an Addendum for 1971. Demographic Research Centre, Bureau of Economics and Statistics, Govt. of Kerala, 1977.
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