The Confutatio Pontificia:

In Reference to the Matters Presented To His Imperial Majesty
by the Elector Of Saxony and Some Princes and States of the Holy Roman Empire,
On the Subject and Concerning Causes Pertaining to the Christian Orthodox Faith,
the Following Christian Reply Can Be Given

August 3, 1530

Edited by J. M. Reu.

Published in
The Augsburg Confession, A Collection of Sources
Ft. Wayne, IN: Concordia Theological Seminary Press),
pp. 349-383.