APA (7 वां संस्करण) प्रशस्ति पत्र
Typology of Languages in Europe (Project), ebrary, Inc, & Dahl, Ö. (2000). Tense and aspect in the languages of Europe. Mouton de Gruyter.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Typology of Languages in Europe (Project), Inc ebrary, और Östen Dahl. Tense and Aspect in the Languages of Europe. Berlin ; New York: Mouton de Gruyter, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Typology of Languages in Europe (Project), et al. Tense and Aspect in the Languages of Europe. Mouton de Gruyter, 2000.
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