theory and examination problems for students Schofield, W. (Wilfred) creator enk London Boston Newnes-Butterworths 1978-1984 1978 1984 2d ed. eng W. Schofield. Includes index. Physics Surveying 526.9 SCH 0408012285 (v. 2) 78318335 DLC 781121 20240911061003.0 853886