The absolute differential calculus : (calculus of tensors) / Tullio Levi-Civita ; edited by Dr. Enrico Pesico, authorized translation by Miss M. Long ... Levi-Civita, Tullio, 1873-1941. Persico, Enrico, 1900-1969, ed. Long, Marjorie, tr. Differential calculus. Calculus of tensors. Relativity (Physics) QA433 .L4 517 LEA "References": p. ix-x London : Blackie & Son, 1929. 1929. 1929 Text xvi, 452 p. : eng eng ita