TY  - BOOK
AU  - Dugopolski, Mark.
TI  - Trigonometry / 
SN  - 0321644751
AV  - QA531  DUG 2011
PY  - 2011///
CY  - Boston : 
PB  - Addison Wesley, 
KW  - Trigonometry
KW  - Textbooks
N1  - Includes bibliographical references and indexes
ER  -