TY  - BOOK
AU  - Morgan, Frank M.
TI  - Plane and spherical trigonometry
AV  - QA531  .M67
PY  - 1945///
CY  - N.Y.
PB  - American Book Co.
KW  - 1. Plane trigonometry 2. Spherical trigonometry 3. Logarithms
KW  - "Y"
N1  - "N"
ER  -