TY  - BOOK
AU  - ROSENBACH, JOSEPH B
AU  - MOSKOVITZ, DAVID
AU  - WHITMAN, EDWIN A
TI  - ESSENTIALS OF PLANE TRIGONOMETRY
U1  - B52 
PY  - 1950///
CY  - LONDON
PB  - GINN AND COMPANY LTD
KW  -  TRIGONOMETRY
KW  - MATHEMATICS
ER  -