SPARKS, FRED W.
Plane trigonometry, by Fred W. Sparks & Paul K. Rees.
SPARKS, FRED W. Plane trigonometry, by Fred W. Sparks & Paul K. Rees. © 30Jul37; A109645. Fred W. Sparks & Paul K. Rees (A); 16Feb65; R356184.
Fred W. Sparks & Paul K. Rees|A