Engineering : an introduction to a creative profession - Beakley, George C; Leach, H. W. (Macmillan, 1977)
Edition for 1951, by H. W. Leach and G. C. Beakley, published under title: Elementary problems in engineering; edition for 1960, by H. W. Leach and G. C. Beakley, published under title: Engineering, the profession and elementary problem analysis