Haverkamp-Begemann, E. and A. M. S. Logan. European Drawings and Watercolors in the Yale University Art Gallery, 1500-1900. 2 vols. New Haven, Conn.: Yale University Press, 1970.

Haverkamp-Begemann, E. and A. M. S. Logan. European Drawings and Watercolors in the Yale University Art Gallery, 1500-1900. 2 vols. New Haven, Conn.: Yale University Press, 1970.