Thrall, Robert McDowell, 1914- Vector spaces and matrices/ Robert M. Thrall and Leonard Tornheim. - New York: Wiley, [1957]. - 318 p.: illus., 24 cm. LCCN: 56009828 /L/r84 Nat. Bib. No.: GB57-13649 Subjects--Topical Terms: Vector spaces.Matrices. Dewey Class. No.: 512.89 512.85