Spherical trigonometry
Subtitle: with tables
By: by Donald H. Ballou and Frederick H. Steen.
Contributors: Steen, Frederick Henry, 1907-
Publisher: Ginn
Published: 1943
Place of publication: Boston
Language: eng
Number of pages: 176
Subjects: Spherical trigonometry.
Notes: "The material ... has been taken from the authors' Plane and spherical trigonometry, with tables"-- Pref.
"Answers": 3, [1] p. following p. 176.
"Proportional parts of differences" (table) on card in pocket.
Includes index.