APA (7th ed.) Citation

Ruhen, O. (1968). Mountains in the clouds (Horowitz Australian Library ed.). Horwitz.

Chicago Style (17th ed.) Citation

Ruhen, Olaf. Mountains in the Clouds. Horowitz Australian Library ed. London: Horwitz, 1968.

MLA (9th ed.) Citation

Ruhen, Olaf. Mountains in the Clouds. Horowitz Australian Library ed. Horwitz, 1968.

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