This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
John Bonnycastle. en Frontpage of Treatise on Plane and Spherical Trigonometry third edition by John Bonnycastle Google books google cat id cwOAAAAQAAJ John Bonnycastle other versions Custom marker pdold Uploaded with Mathematics book covers Mathematicians from England books births deaths
Page 2023 Free-images.com. All images are Public Domain