"The Freedmen and the Slaves of God", W. L. Westermann, "Proc. of the American Philosophical Society", vol. 92, 1948, no 1 : [recenzja]

The Journal of Juristic Papyrology, Tom 3 (1949) s. 160
Rafał Taubenschlag , William Linn Westermann (aut. dzieła rec.)