Trigonometry :
Keedy, Mervin L.
Trigonometry : triangles and functions / Mervin L Keedy, Marvin L Bittinger . - 2nd. ed. - Reading, Mass : Addison-Wesley, 1978. - 269 p.
TRIGONOMETRIA.
516.24 K26t 1978
Trigonometry : triangles and functions / Mervin L Keedy, Marvin L Bittinger . - 2nd. ed. - Reading, Mass : Addison-Wesley, 1978. - 269 p.
TRIGONOMETRIA.
516.24 K26t 1978