APA Citation

Heller, G., & Nehring, K. (1973). Comitatus Sirmiensis. München.

Chicago Style Citation

Heller, Georg, and Karl Nehring. Comitatus Sirmiensis. München, 1973.

MLA Citation

Heller, Georg, and Karl Nehring. Comitatus Sirmiensis. München, 1973.

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