(2008). RosettaStone English: Supplemental education materials (Classroom version 3). Harrisonburg, VA: Rosetta Stone.
Chicago Style aipamenaRosettaStone English: Supplemental Education Materials (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2008.
MLA aipamenaRosettaStone English: Supplemental Education Materials (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2008.
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