Ruffini, R. (1975). Proceedings of the first marcel grossmann meeting on general relativity, organized and held at the international centre for theoretical physics, trieste and istituto di fisica teorica, University of Treiste 7-.. North-Holland Publishing.
Цитирование в стиле Чикаго (17-е изд.)Ruffini, R. Proceedings of the First Marcel Grossmann Meeting on General Relativity, Organized and Held at the International Centre for Theoretical Physics, Trieste and Istituto Di Fisica Teorica, University of Treiste 7-.. Amsterdam: North-Holland Publishing, 1975.
Цитирование MLA (9-е изд.)Ruffini, R. Proceedings of the First Marcel Grossmann Meeting on General Relativity, Organized and Held at the International Centre for Theoretical Physics, Trieste and Istituto Di Fisica Teorica, University of Treiste 7-.. North-Holland Publishing, 1975.