Das, B.C.

42742
43636
43688
45714

Pre-university trigonometry . — 7th.rev.ed. C3:8th.ed. . — Calcutta : U.N. Dhur, 1968.

viii,252,xxiip. ill.diagrs. 18cm.

Rs.6.00 C1-Lost&Replaced by H.S trigonometry 9th.ed.1999-Rs.25.00

Subjects--Index Terms: Mathematics