APA (7th ed.) Citation

Schwarz, W. (1967). Köln-Aachen. Bongers.

Chicago Style (17th ed.) Citation

Schwarz, Will. Köln-Aachen. Recklinghausen: Bongers, 1967.

MLA (8th ed.) Citation

Schwarz, Will. Köln-Aachen. Bongers, 1967.

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