(2005). "The lighter side" of TOEFL: A Teacher's resource book of fun activities for student of English as a Foreign language. Washington, D.C: United States Department of State.
Chicago-tyylinen lähdeviittaus"The Lighter Side" of TOEFL: A Teacher's Resource Book of Fun Activities for Student of English As a Foreign Language. Washington, D.C: United States Department of State, 2005.
MLA-viite"The Lighter Side" of TOEFL: A Teacher's Resource Book of Fun Activities for Student of English As a Foreign Language. Washington, D.C: United States Department of State, 2005.
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