APA (7th ed.) Citation

Ullmann, E. (1979). Albrecht Dürer. Seemann.

Chicago Style (17th ed.) Citation

Ullmann, Ernst. Albrecht Dürer. Leipzig: Seemann, 1979.

MLA (8th ed.) Citation

Ullmann, Ernst. Albrecht Dürer. Seemann, 1979.

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