Ayres, Frank
Schaum's outline of theory and problems of plane and spherical trigonometry - 1st ed. - New York Schaum Publishing 1954 - 207p. ill.
Trigonometry : plane and solid, theory and problems
514 / AYR/1954
Schaum's outline of theory and problems of plane and spherical trigonometry - 1st ed. - New York Schaum Publishing 1954 - 207p. ill.
Trigonometry : plane and solid, theory and problems
514 / AYR/1954