TY  - BOOK
AU  - Bettiknger,Alvin K., Englund, John A.
AU  - x
TI  - Algebra and trigonometry: x
SN  - x
U1  - 514/BEA 
PY  - 1963///
CY  - Scranton
PB  - I.T.C.
KW  - Trigonometry
N1  - x
ER  -