Humbach, H., Faiss, K., & Zarathustra 628 v.Chr.-551 v.Chr. (2010). Zarathushtra and his antagonists: A sociolinguistic study with English and German translations of his Gāthās. Reichert.
Chicago Style (17th ed.) CitationHumbach, Helmut, Klaus Faiss, and Zarathustra 628 v.Chr.-551 v.Chr. Zarathushtra and His Antagonists: A Sociolinguistic Study with English and German Translations of His Gāthās. Wiesbaden: Reichert, 2010.
MLA (8th ed.) CitationHumbach, Helmut, et al. Zarathushtra and His Antagonists: A Sociolinguistic Study with English and German Translations of His Gāthās. Reichert, 2010.
Warning: These citations may not always be 100% accurate.