History and technique of old master drawings : : A handbook.
MLA
De Tolnay, Charles. History and Technique of Old Master Drawings : A Handbook. New York City: Hacker Art Books, 1972.
APA
De Tolnay, C. (1972). History and technique of old master drawings : A handbook. New York City: Hacker Art Books.
Chicago
De Tolnay, Charles History and Technique of Old Master Drawings: A Handbook. New York City: Hacker Art Books, 1972.