Lawden, D. F. (1967). An introduction to Tensor Calculus and Relativity: Methuen`s monographs an Physical subjects. s.n.
Citazione stile Chigago Style (17a edizione)Lawden, Derek F. An Introduction to Tensor Calculus and Relativity: Methuen`s Monographs an Physical Subjects. Londres: s.n, 1967.
Citatione MLA (9a ed.)Lawden, Derek F. An Introduction to Tensor Calculus and Relativity: Methuen`s Monographs an Physical Subjects. s.n, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.