F. Eugene Seymour & Paul J. Smith.
Teachers manual and answer book to Plane and spherical trigonometry.
R561004. Teachers manual and answer book to Plane and spherical trigonometry. By F. Eugene Seymour & Paul J. Smith. © 17Sep46; AA18259. Hazel Smith (W), Paul Smith, Jr. (C) & Frances E. Clark (C of F. Eugene Seymour); 9Oct73; R561004.
Hazel Smith|W||Paul Smith, Jr.|C||Frances E. Clark|C of F. Eugene Seymour