Bibliothèque nationale de France
Bodleian Library
British Library
Center for Research Libraries (Queen's has subscription for interlibrary loan)
Library & Archives Canada (Amicus)
Library of Congress
Smithsonian Libraries
Staatsbibliothek zu Berlin
Vatican Library - All Catalogues
Other Library Catalogues
Credit: The Mellon chansonnier. New Haven : Yale University Press, 1979.