APA (7th ed.) Citation

Stengel, W. (1962). Guckkasten: Altberliner Curiosa. de Gruyter.

Chicago Style (17th ed.) Citation

Stengel, Walter. Guckkasten: Altberliner Curiosa. Berlin: de Gruyter, 1962.

MLA (9th ed.) Citation

Stengel, Walter. Guckkasten: Altberliner Curiosa. de Gruyter, 1962.