TY  - BOOK
AU  - Sparks, Fred W.
AU  - Rees, Paul K.
TI  - Plane trigonometry
U1  - 514 23
PY  - 1959///, [3rd Printing 1953]
CY  - New York
PB  - Appleton-Century-Crofts
KW  - Plane trigonometry
N1  - index
ER  -