Das, B.C.

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Higher trigonometry . — 14th.ed. C1-15th.ed. C2-17th.ed. C4-19th.ed. . — Calcutta : U.N. Dhur, Publ. Dt. not found.

xvi,302p. 18.5cm.

Rs.8.00 C3-tr. to Mathematics Cl.lib.

Subjects--Index Terms: Mathematics