Malhotra, O. (1969). A complete course in additional maths. etc. S.Chand & Co.
Lua i Stíl Chicago (17ú heag.)Malhotra, O. A Complete Course in Additional Maths. Etc. Delhi: S.Chand & Co, 1969.
Lua MLA (9ú heag.)Malhotra, O. A Complete Course in Additional Maths. Etc. S.Chand & Co, 1969.
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