TY  - BOOK
AU  - Nielsen,Kaj Leo
AU  - Vanlonkhuyzen,John H.
TI  - Plane and spherical trigonometry
U1  - 516.24 
PY  - 1954///
CY  - New York
PB  - Barnes & Vanlonkhuyzen
KW  - TRIGONOMETRIA PLANA
KW  - TRIGONOMETRIA ESFERICA
ER  -