TY  - BOOK
AU  - SPARKS, FRED W
AU  - REES, PAUL K
TI  - PLANE TRIGONOMETRY
U1  - B52 
PY  - 1952///
CY  - New Jersy
PB  - Prentice Hall , inc
KW  -  TRIGONOMETRY
KW  - MATHEMATICS
ER  -