TY  - BOOK
AU  - Smith,Rolland R.
AU  - Hanson,Paul Phillip
TI  - Trigonometry,by Rolland R. Smith and Paul P. Hanson
AV  - QA533 .T754 1957
PY  - 1957///
CY  - Yonkers-on-Hudson, New York
PB  - World Book Company
KW  - Plane trigonometry
N1  - 4; 2
ER  -