APA (7th ed.) Citation

Runkel, F. (1923). Der blaue Schatten: Detektivroman (10. Taus.). Singer.

Chicago Style (17th ed.) Citation

Runkel, Ferdinand. Der Blaue Schatten: Detektivroman. 10. Taus. Leipzig: Singer, 1923.

MLA (9th ed.) Citation

Runkel, Ferdinand. Der Blaue Schatten: Detektivroman. 10. Taus. Singer, 1923.

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