Allan, A. L. Practical surveying and computations / A.L. Allan. - Rev. 2nd ed. - Oxford ; Boston : Laxtons, 1997. - xvi, 573 p. : ill. ; 24 cm. Rev. ed. of: Practical field surveying and computations. 1968. ISBN: 0750636556 Subjects--Topical Terms: MCE Dewey Class. No.: 526.9 / ALL