APA (7th ed.) Citation

(1995). Mülheim, Ruhr. Geograph. Verl.-Ges.

Chicago Style (17th ed.) Citation

Mülheim, Ruhr. München: Geograph. Verl.-Ges, 1995.

MLA (9th ed.) Citation

Mülheim, Ruhr. Geograph. Verl.-Ges, 1995.

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