APA (7th ed.) Citation

Georg Müller Verlag (Monachium), Delbrück, J. v., & Imhoff, K. (1915). Lüttich, Namur, Antwerpen. Georg Müller.

Chicago Style (17th ed.) Citation

Georg Müller Verlag (Monachium), Joachim von Delbrück, and Karl Imhoff. Lüttich, Namur, Antwerpen. München: Georg Müller, 1915.

MLA (9th ed.) Citation

Georg Müller Verlag (Monachium), et al. Lüttich, Namur, Antwerpen. Georg Müller, 1915.