Downing, Douglas.
Trigonometry, the easy way/ Douglas Downing. - 3rd ed. - Hauppauge, NY: Barron's, 2001. - ix, 326 p.: ill.; 28cm.
0764113607
Trigonometry.
516.24 DOW 2001
Trigonometry, the easy way/ Douglas Downing. - 3rd ed. - Hauppauge, NY: Barron's, 2001. - ix, 326 p.: ill.; 28cm.
0764113607
Trigonometry.
516.24 DOW 2001