APA (7e ed.) Bronvermelding

International School of Physics "Enrico Fermi.", Società italiana di fisica, & Ehlers, J. (1979). Isolated gravitating systems in general relativity, Varenna on Lake Como, Villa Monastero, 28th June-10th July 1976. North-Holland Pub. Co..

Chicago (17e ed.) Bronvermelding

International School of Physics "Enrico Fermi.", Società italiana di fisica, en Jürgen Ehlers. Isolated Gravitating Systems in General Relativity, Varenna on Lake Como, Villa Monastero, 28th June-10th July 1976. Amsterdam ; New York: North-Holland Pub. Co., 1979.

MLA (8e ed.) Bronvermelding

International School of Physics "Enrico Fermi.", et al. Isolated Gravitating Systems in General Relativity, Varenna on Lake Como, Villa Monastero, 28th June-10th July 1976. North-Holland Pub. Co., 1979.