TY  - BOOK
AU  - Gustafson,R.David
AU  - Frisk,Peter D.
TI  - Plane Trigonometry 
SN  - 0534036066
U1  - 516.2/4 GUS 1985 
PY  - 1985///
PB  - Brooks/Cole
KW  - Plane trigonometry
N1  - Includes index
ER  -