Plane and spherical trigonometry /
Rider, Paul R.
Plane and spherical trigonometry / Paul R. Rider. - N. Y : The Macmillan, c1971. - xiv, 142 p. : ill. ; 21 cm.
9710819186
Trigonometry.
Plane and spherical trigonometry / Paul R. Rider. - N. Y : The Macmillan, c1971. - xiv, 142 p. : ill. ; 21 cm.
9710819186
Trigonometry.