Ursinus, Zacharias. The Commentary of Dr. Zacharius Ursinus on the Heidelberg Catechism; Translated from the original Latin, by the Rev. G. W. Williard, A.M. Grand Rapids: Wm. B. Eerdmans Publishing Co., 1956.
Teal cloth, 5 3/4 x 8 3/4 inches, ex Bible college library, faint outline from removed spine label, xxxviii., 659 clean pp., light shelf-wear. Good. Hardcover. 
A facsimile reprint of the Second American Edition published at Columbus, Ohio, in 1852.
Zacharius Ursinus (1534-1583), German theologian, professor of theology at the University of Heidelberg, and co-author with Caspar Olevianus of the Heidelberg Catechism.