Darden, B. J. The contextual uses of the present perfect in the primary chronicle: Bill J. Darden. O RUS! : Studia litteraria slavica in honorem Hugh McLean.(1995).
Lua i Stíl Chicago (17ú heag.)Darden, Bill J. "The Contextual Uses of the Present Perfect in the Primary Chronicle: Bill J. Darden." O RUS! : Studia Litteraria Slavica in Honorem Hugh McLean.(1995) .
Lua MLA (8ú heag.)Darden, Bill J. "The Contextual Uses of the Present Perfect in the Primary Chronicle: Bill J. Darden." O RUS! : Studia Litteraria Slavica in Honorem Hugh McLean.(1995), .
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