APA (7th ed.) Citation

Keller, H. E. Trilogie des Zeitlosen. vdf.

Chicago Style (17th ed.) Citation

Keller, Hildegard Elisabeth. Trilogie Des Zeitlosen. [Zürich]: vdf.

MLA (9th ed.) Citation

Keller, Hildegard Elisabeth. Trilogie Des Zeitlosen. vdf.

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