Pugwash Conference on Science and World Affairs Egham. (1990). Towards a secure world in the twenty-first century: Proceedings of the fortieth Pugwash Conference on Science and World Affairs, Egham, UK, 15-20 September 1990. [s.n.].
Chicago-Zitierstil (17. Ausg.)Pugwash Conference on Science and World Affairs Egham. Towards a Secure World in the Twenty-first Century: Proceedings of the Fortieth Pugwash Conference on Science and World Affairs, Egham, UK, 15-20 September 1990. Genewa [etc.]: [s.n.], 1990.
MLA-Zitierstil (9. Ausg.)Pugwash Conference on Science and World Affairs Egham. Towards a Secure World in the Twenty-first Century: Proceedings of the Fortieth Pugwash Conference on Science and World Affairs, Egham, UK, 15-20 September 1990. [s.n.], 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.