Tohutoro APA (7th ed.)
Kost, G. (1956). Moderne Zinstheorien.
Tohutoru Kātū Chicago (17th ed.)
Kost, Gerhard. Moderne Zinstheorien. Innsbruck, 1956.
Tohutoro MLA (9th ed.)
Kost, Gerhard. Moderne Zinstheorien. 1956.
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