TY  - GEN
AU  - Larson,Roland E.
AU  - Hostetler,Robert P.
AU  - Edwards,Bruce H.
TI  - Trigonometry: a graphing approach with technology updates 
SN  - 0669417602
AV  - QA531.TRI 1997 
PY  - 1997///
CY  - Boston
PB  - Houghton Mufflin company.
KW  - Trigonometry
N1  - Includes indexes
ER  -