Input (grade 12): Walter L. Strauss (Editor) (1973), The Complete Engravings, Etchings and Drypoints of Albrecht Durer, Dover Publications.
Output (grade 9): ISBN 0-7141-2633-0 Walter L. Strauss (Editor) (1973), The Complete Engravings, Etchings and Drypoints of Albrecht Durer, Dover Publications.