Plane and spherical trigonometry,
Morgan, Frank Millett,  1954- 
Plane and spherical trigonometry, - New York, Cincinnati [etc.] American book company 1954. - v, 247 p. illus., diagrs. 22 cm.
45004507
Trigonometry.
QA537 .A97 1954
                        Plane and spherical trigonometry, - New York, Cincinnati [etc.] American book company 1954. - v, 247 p. illus., diagrs. 22 cm.
45004507
Trigonometry.
QA537 .A97 1954