(2009). RosettaStone English: Teacher's guide (Classroom version 3). Harrisonburg, VA: Rosetta Stone.
Chicago-stil citatRosettaStone English: Teacher's Guide (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2009.
MLA-referensRosettaStone English: Teacher's Guide (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.