APA (7th ed.) Citation

De Tolnay, C. (1972). History and technique of old master drawings : a handbook / Charles de Tolnay: A handbook. Hacker Art Books.

Chicago Style (17th ed.) Citation

De Tolnay, Charles. History and Technique of Old Master Drawings : A Handbook / Charles De Tolnay: A Handbook. New York: Hacker Art Books, 1972.

MLA (9th ed.) Citation

De Tolnay, Charles. History and Technique of Old Master Drawings : A Handbook / Charles De Tolnay: A Handbook. Hacker Art Books, 1972.

Warning: These citations may not always be 100% accurate.