Lawden, Derek. An introduction to tensor calculus and relativity. - London : New York : London : New York : Methuen ; Wiley, Methuen ; Wiley, [c1962] - Methuen's monographs on physical subjects . Bibliography: p. 170. LCCN: a 64000231 Subjects--Topical Terms: Relativity (Physics)Calculus of tensors. LC Class. No.: QC6