Columbia subject headings:
Dietrich, von Freiberg, approximately 1250-approximately 1310.
Science--Methodology.
Harvard subject headings:
Dietrich, von Freiberg, approximately 1250-approximately 1310.
Science--Methodology
Princeton subject headings:
Science--Methodology.
Theodoricus Teutonicus, Magister, of Freiberg (?) f. 1300.