APA (7th ed.) Citation

Hühnerfeld, P. (1961). In Sachen Heidegger. P. List.

Chicago Style (17th ed.) Citation

Hühnerfeld, Paul. In Sachen Heidegger. München: P. List, 1961.

MLA (9th ed.) Citation

Hühnerfeld, Paul. In Sachen Heidegger. P. List, 1961.