PLANE AND SPHERICAL TRIGONOMETRY
ELMER A.LYMAN AND EDWIN C.GODDARD1900 年出版208 页ISBN:
SCHAUM’S OUTLINE OF THEORY AND PROBLEMS OF PLANE AND SPHERICAL TRIGONOMETRY
FRANK AYRES1954 年出版207 页ISBN:
PLANE WAVES AND SPHERICAL MEANS APPLIED TO PARTIAL DIFFERENTIAL EQUATIONS
FRITZ JOHN1955 年出版172 页ISBN: