Menon, K. N. (1977). Aryabhata: Astronomer mathematician. Publications Division, Ministry of Information and Broadcasting, Govt. of India.
Citace podle Chicago (17th ed.)Menon, K. N. Aryabhata: Astronomer Mathematician. New Delhi: Publications Division, Ministry of Information and Broadcasting, Govt. of India, 1977.
Citace podle MLA (8th ed.)Menon, K. N. Aryabhata: Astronomer Mathematician. Publications Division, Ministry of Information and Broadcasting, Govt. of India, 1977.
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