APA (7th ed.) Citation

Graf, O. A., & Wagner, O. (1997). Otto Wagner. Böhlau.

Chicago Style (17th ed.) Citation

Graf, Otto Antonia, and Otto Wagner. Otto Wagner. Wien [u.a.]: Böhlau, 1997.

MLA (9th ed.) Citation

Graf, Otto Antonia, and Otto Wagner. Otto Wagner. Böhlau, 1997.

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