Gabriel, A. L., & Lowe, E. A. (1965). The Ambrosiana microfilming project. Mediaeval Institute, University of Notre Dame.
Lua i Stíl Chicago (17ú heag.)Gabriel, Astrik L., agus Elias Avery Lowe. The Ambrosiana Microfilming Project. Notre Dame, Ind.: Mediaeval Institute, University of Notre Dame, 1965.
Lua MLA (8ú heag.)Gabriel, Astrik L., agus Elias Avery Lowe. The Ambrosiana Microfilming Project. Mediaeval Institute, University of Notre Dame, 1965.
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