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
Koha