APA (7th ed.) Zitazioa
Elmer, W. (1981). Diachronic grammar: The history of Old and Middle English subjectless constructions. Niemeyer.
Chicago Style (17th ed.) Zitazioa
Elmer, Willy. Diachronic Grammar: The History of Old and Middle English Subjectless Constructions. Tübingen: Niemeyer, 1981.
MLA (9th ed.) Zitazioa
Elmer, Willy. Diachronic Grammar: The History of Old and Middle English Subjectless Constructions. Niemeyer, 1981.
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