Analytical mechanics for engineers,/ Fred B. Seely ... and Newton E. Ensign. Seely, Fred B., 1884- Ensign, Newton E. (Newton Edward), 1882- joint author. Mechanics, Analytic. QA809 .S4 1921 531.017 SEA New York, J. Wiley & sons, 1921. 1921. 1921 Text xiv, 486 p. eng