EISENHART, LUTHER PFAHLER.
Coordinate geometry.
EISENHART, LUTHER PFAHLER. Coordinate geometry. © 27Jun39; A130422. Churchill Eisenhart, Anna Maria Small Eisenhart Anderson & Katharine Riely Eisenhart Brovm (C); 5Aug66; R391498.
Churchill Eisenhart, Anna Maria Small Eisenhart Anderson & Katharine Riely Eisenhart Brovm|C