APA (7th ed.) Citation

Poppelreuter, J. (1906). Die römischen Gräber Kölns. [publisher not identified].

Chicago Style (17th ed.) Citation

Poppelreuter, Josef. Die Römischen Gräber Kölns. [Bonn]: [publisher not identified], 1906.

MLA (8th ed.) Citation

Poppelreuter, Josef. Die Römischen Gräber Kölns. [publisher not identified], 1906.

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