Harvard University, Cambridge, Massachusetts, USA - Tozzer Library

Yale University, New Haven, Connecticut, USA - Sterling Memorial Library

Stanford University, Stanford, California, USA - Stanford University Library

Princeton Theological Seminary, Princeton, New Jersey, USA

Libreria del Congresso - Library of Congress, Washington D.C. (USA)

Staatsbibliothek zu Berlin - Preussischer Kulturbesitz, Berlin, Deutschland

Deutschen Nationalbibliothek, Frankfurt Am Main, Deutschland

Sistema Bibliotecario Ticinese, Lugano, Canton Ticino, Svizzera

Zentralbibliothek Zürich, Zurigo, Svizzera

E-Lib.ch, Svizzera