TY  - BOOK
AU  - Clark,John R.
AU  - Smith, Rolland R., Joint author
TI  - Plane geometry : : constructions, locus, ratio and proportion, poiygons, and geometry in aeronautics 
T2  - War department education manual
U1  - 516.22 23
PY  - 1944///
CY  - Washington, D. C.
PB  - World book com., 
KW  - Geometry, Plane
N1  - Include index
ER  -