American Biographical Institute. (2003). Great minds of the 21st century. American Biographical Institute.
Chicago-viite (17. p.)American Biographical Institute. Great Minds of the 21st Century. Raleigh, N.C: American Biographical Institute, 2003.
MLA-viite (9. p.)American Biographical Institute. Great Minds of the 21st Century. American Biographical Institute, 2003.
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