APA (7th ed.) Citation

Schmidt, R., & Schmidt-Glassner, H. (1959). Burgen des deutschen Mittelalters. Hirmer.

Chicago Style (17th ed.) Citation

Schmidt, Richard, and Helga Schmidt-Glassner. Burgen Des Deutschen Mittelalters. München: Hirmer, 1959.

MLA (9th ed.) Citation

Schmidt, Richard, and Helga Schmidt-Glassner. Burgen Des Deutschen Mittelalters. Hirmer, 1959.

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