Hazay, Istva'n. Adjusting calculations in surveying I. Hazay. [Translated by Gy. Va'rhidi. Edited by P. Bi'ro']. - Budapest Akade'miai Kiado' c1970. - 596 p. ill. 25 cm. Includes bibliographical references and index. ISBN: 78292999 Subjects--Topical Terms: Least squares.Surveying.