APA (7th ed.) Citation

Ullmann, E. (1973). Albrecht Dürer. Bibliographisches Institut.

Chicago Style (17th ed.) Citation

Ullmann, Ernst. Albrecht Dürer. Leipzig: Bibliographisches Institut, 1973.

MLA (8th ed.) Citation

Ullmann, Ernst. Albrecht Dürer. Bibliographisches Institut, 1973.

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