1. Differential geometry and applications
2. (1962), Theorie des connexions et des groupes d'holonomie, Rome, Cremonese.
3. and (1963), Foundations of differential geometry, vol. 1, London. Interscience.
4. and (1977), Fibre bundle techniques in gauge theories. Lecture Notes in Physics, Berlin. Springer.
5. (1954), Ricci calculus, Berlin, Springer.