ISBN 1245035673 books & textbook
A Treatise On Spherical Trigonometry: With Applications To Spherical Geometry And Numerous Examples, Part 1
M'Clelland, William J. Preston, Thomas
Nabu Press /2011-09-11 Paperback / 182 Pages
isbn-10: 1245035673 / isbn-13: 9781245035675
