Silhouette mathematics. :
(Extended analytic geometry)
APA Citation
Underwood, R. S. (Ralph Sylvester). (1961). Silhouette mathematics.: (Extended analytic geometry). [Place of publication not identified]: [publisher not identified].
MLA Citation
Underwood, R. S. (Ralph Sylvester), 1891-. Silhouette Mathematics.: (Extended Analytic Geometry). [Place of publication not identified]: [publisher not identified], 1961.
Warning: These citations may not always be complete (especially for serials).