Dyfyniad APA

Società italiana di fisica, International School of Physics "Enrico Fermi", & Sachs, R. K. (1971). General relativity and cosmology: Proceedings of the International School of Physics Enrico Fermi. Academic Press.

Dyfyniad Arddull Chicago

Società italiana di fisica, International School of Physics "Enrico Fermi", and R. K. Sachs. General Relativity and Cosmology: Proceedings of the International School of Physics Enrico Fermi. New York: Academic Press, 1971.

Dyfyniad MLA

Società italiana di fisica, et al. General Relativity and Cosmology: Proceedings of the International School of Physics Enrico Fermi. Academic Press, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.