Gibbon, D., & Smart, T. (1979). New York State and Niagara Falls: A picture book to remember her by. Crescent Books.
Chicago-viite (17. p.)Gibbon, David, ja Ted Smart. New York State and Niagara Falls: A Picture Book to Remember Her by. New York: Crescent Books, 1979.
MLA-viite (8. p.)Gibbon, David, ja Ted Smart. New York State and Niagara Falls: A Picture Book to Remember Her by. Crescent Books, 1979.
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