Allan, A. L. Practical field surveying and computations / A. L. Allan, J. R. Hollowey & J. H. B. Maynes - London : Heinemann , 1968 - xvi, 689p. : ill. ; 22 cm. Includes bibliographical references and index. Subjects--Topical Terms: Surveying Dewey Class. No.: 526.9 / ALL