Lawden, Derek F. An introduction to tensor calculus and relativity / Derek F. Lawden. - London : New York : Methun and co ltd ; John wiley and sons inc, c1962 - xii, 172 p. : ill. ; 18 cm. Includes Bibliography and index Subjects--Topical Terms: Relativity (Physics)Calculus of tensors Dewey Class. No.: 530.11 / LAI 1962