TY  - BOOK
AU  - Sparks,Fred W.
AU  - Rees,Paul Klein
AU  - Rees,Charles Sparks
TI  - Plane trigonometry
SN  - 0136792251 (hardcover)
PY  - 1984///
CY  - [S.l.]
PB  - Prentice Hall College Div
UR  - http://www.amazon.com/exec/obidos/ASIN/0136792251/chopaconline-20
ER  -