APA (7th ed.) Citation

Koechlin, H. (1990). Philosophie des freien Geistes. Kramer.

Chicago Style (17th ed.) Citation

Koechlin, Heiner. Philosophie Des Freien Geistes. Kramer, 1990.

MLA (8th ed.) Citation

Koechlin, Heiner. Philosophie Des Freien Geistes. Kramer, 1990.

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