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Kristin Kersten is professor of Language Acquisition and English Language Teaching at Hildesheim University, Germany. Understanding Variability in Second Language Acquisition, Bilingualism, and Cognition by Kristin Kersten, Adam Winsler.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.