APA (7th ed.) Citation

Gage, J. (1979). Runge, Goethe, and the "Farbenkugel".

Chicago Style (17th ed.) Citation

Gage, John. Runge, Goethe, and the "Farbenkugel". 1979.

MLA (9th ed.) Citation

Gage, John. Runge, Goethe, and the "Farbenkugel". 1979.

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