TY  - BOOK
AU  - Abbott,Paul
TI  - Understand Trigonometry
SN  - 978-1-444-10277-2
AV  - QA531.A23 
PY  - 2010///
CY  - New York
PB  - : McGraw-Hill
KW  - Trigonometry
N1  - Includes bibliographical references and index
ER  -