Keenan, S. (2004). O, Say Can You See ?: America's Symbols, Landmarks, and Inspiring Words. Scholastic Inc.
Chicago-viite (17. p.)Keenan, Sheila. O, Say Can You See ?: America's Symbols, Landmarks, and Inspiring Words. Scholastic Inc, 2004.
MLA-viite (8. p.)Keenan, Sheila. O, Say Can You See ?: America's Symbols, Landmarks, and Inspiring Words. Scholastic Inc, 2004.
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