Lawden, D. F. (1967). An introduction to tensor calculus and relativity (2nd ed.). Methuen.
Dyfyniad Arddull ChicagoLawden, Derek F. An Introduction to Tensor Calculus and Relativity. 2nd ed. London: Methuen, 1967.
Dyfyniad MLALawden, Derek F. An Introduction to Tensor Calculus and Relativity. 2nd ed. Methuen, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.