APA (7 वां संस्करण) प्रशस्ति पत्र
Haugen, E., & Firchow, E. S. (1972). Studies by Einar Haugen: Presented on the occasion of his 65th birthday, April 19, 1971. Mouton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Haugen, Einar, और Evelyn Scherabon Firchow. Studies by Einar Haugen: Presented on the Occasion of His 65th Birthday, April 19, 1971. The Hague: Mouton, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Haugen, Einar, और Evelyn Scherabon Firchow. Studies by Einar Haugen: Presented on the Occasion of His 65th Birthday, April 19, 1971. Mouton, 1972.
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