Weidner, Richard T. Elementary physics, classical and modern / Richard T. Weidner, Robert L. Sells ; with the assistance of Arthur E. Walters. - Boston : Allyn and Bacon, [1975] - xvi, 813 p. : ill., ; 25 cm. Includes index. ISBN: 0205046479 : $17.95 LCCN: 74028121 LC Class. No.: QC23 / .W414 Dewey Class. No.: 530