TY  - BOOK
AU  - Aufmann, Richard N.
AU  - Barker, Vernon C.
AU  - Nation, Richard.
TI  - College trigonometry / 
SN  - 9780395786451
AV  - QA531  .A87 1997
PY  - 1997///
CY  -  Boston : 
PB  - Houghton Mifflin, $
KW  - Trigonometry
N1  - Includes index
ER  -