Ramachandran Nair C G. (1990). Sarvavijnanakosham (v.9). State institute of encyclopaedic publications.
Chicago Stili AlıntıRamachandran Nair C G. Sarvavijnanakosham (v.9). Thiruvananthapuram: State institute of encyclopaedic publications, 1990.
MLA AlıntıRamachandran Nair C G. Sarvavijnanakosham (v.9). State institute of encyclopaedic publications, 1990.
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