Heiskanen, Weikko A. 1895-1971. Physical geodesy/ [by] Weikko A. Heiskanen [and] Helmut Moritz. - San Francisco: W.H. Freeman, [1967]. - vi, 364 p.: illus., 25 cm. - A series of books in geology . Includes bibliographies. LCCN: 66024950 Nat. Bib. No.: GB67-16846 Subjects--Topical Terms: Gravity.Geodesy. Dewey Class. No.: 531.1 / H473p