TY  - DATA
AU  - Dudley, Underwood.
AU  - Dudley, Underwood.
TI  - The trisectors 
T2  - Spectrum, 
SN  - 9781470451714 (online)
PY  - 1994///
CY  - [Washington, D.C.]
PB  - Mathematical Association of America
KW  - Mathematics
KW  - Trisection of angle
N1  - Rev. ed. of: The budget of trisections. New York : Springer-Verlag, 1987.;Includes index
UR  - https://doi.org/10.1090/spec/016
ER  -