APA (7th ed.) Citation

Kögel, G. (1899). Rudolf Kögel. Mittler.

Chicago Style (17th ed.) Citation

Kögel, Gottfried. Rudolf Kögel. Berlin: Mittler, 1899.

MLA (8th ed.) Citation

Kögel, Gottfried. Rudolf Kögel. Mittler, 1899.

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