Cita APA (7th ed.)

Zigrosser, C., & Gaehde, C. M. (1965). A guide to the collecting and care of original prints. Crown Pub.

Cita Chicago (17th ed.)

Zigrosser, Carl, i Christa M. Gaehde. A Guide to the Collecting and Care of Original Prints. New York: Crown Pub, 1965.

Cita MLA (9th ed.)

Zigrosser, Carl, i Christa M. Gaehde. A Guide to the Collecting and Care of Original Prints. Crown Pub, 1965.