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Numrich, Carol. Consider the Issues. 3rd ed. New Jersey: Pearson ESL, 2003. ISBN: 0131115936.
King, Kevin. The Big Picture: Idioms as Metaphors. Boston: Houghton Mifflin College Division, 1999. ISBN: 0395917123.
Houghton Mifflin Company Staff. The American Heritage Dictionary of Idioms for Students of English. Boston: Houghton Mifflin College Division, 2000. ISBN: 0395976200.
