While George Thomas was the sole author until the 1970s, the book has evolved through collaboration with other prominent mathematicians, including Ross L. Finney, Maurice D. Weir, and Joel Hass. Thomas Calculus 12th Edition George B Thomas
"Thomas' Calculus" is a popular calculus textbook written by George B. Thomas Jr., Maurice D. Weir, and Joel Hass. The book is widely used in colleges and universities around the world for introductory calculus courses. thomas calculus