Bibliotheca Sancta
Sixtus of Siena's bibliographic and critical survey of sacred literature, addressing questions of authorship and canonicity.
Chapter I (The Six Days of Creation)
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Introduction
— Cited (Book IV) as attesting that certain Genesis commentaries are by the English, not the Angelic, Doctor
"is attested by St. Antoninus and Sixtus of Siena, in book IV of the Bibliotheca Sancta"