TY  - BOOK
AU  - Kells, Lyman M.
AU  - Kern, Wills F. 
AU  - Bland, James R.
TI  - Plane and spherical trigonometry
SN  - 97108-1917-8 (pbk.)
PY  - 1978///
CY  - New York
PB  - McGraw-Hill
KW  - Trigonometry
N1  - Includes appendices and index
ER  -