Symposium 91. Saving the Twientieth Century Ottawa, Canada, Canadian Conservation Institute, & Grattan, D. W. (1993). Saving the twentieth century: The conservation of modern materials : proceedings of a conference Symposium '91 Saving the Twentieth Century, Ottawa, Canada, 15 to 20 September 1991 = Sauvegarder le XXe siècle : la conservation des matériaux modernes : les actes de la conférence Symposium 91 Sauvegarder le XXe Siècle. Canadian Conservation Institute.
Style de citation Chicago (17e éd.)Symposium 91. Saving the Twientieth Century Ottawa, Canada, Canadian Conservation Institute, et David W. Grattan. Saving the Twentieth Century: The Conservation of Modern Materials : Proceedings of a Conference Symposium '91 Saving the Twentieth Century, Ottawa, Canada, 15 to 20 September 1991 = Sauvegarder Le XXe Siècle : La Conservation Des Matériaux Modernes : Les Actes De La Conférence Symposium 91 Sauvegarder Le XXe Siècle. Ottawa, Canada: Canadian Conservation Institute, 1993.
Style de citation MLA (8e éd.)Symposium 91. Saving the Twientieth Century Ottawa, Canada, et al. Saving the Twentieth Century: The Conservation of Modern Materials : Proceedings of a Conference Symposium '91 Saving the Twentieth Century, Ottawa, Canada, 15 to 20 September 1991 = Sauvegarder Le XXe Siècle : La Conservation Des Matériaux Modernes : Les Actes De La Conférence Symposium 91 Sauvegarder Le XXe Siècle. Canadian Conservation Institute, 1993.