TY  - BOOK
AU  - Gustafson, R. David
AU  - Frisk, Peter D.,
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 0534098266 (hardback)
SN  - 2
PY  - 1989///];copyright 1989.46
CY  - Pacific Grove, Calif.
PB  - Brooks/Cole Pub. Co.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Plane trigonometry
N1  - Printed in black and red.;Includes index; 5
ER  -