- ^ "Gathering Blue (Giver Quartet #2) (Hardcover) | Hartfield Book Company". www.hartfieldbookco.com. Retrieved 2021-04-02.
- ^ "Children's Chapter Book Best Sellers" The New York Times. October 8, 2000.
- ^ "Children's Chapter Book Best Sellers" The New York Times. October 15, 2000.
- ^ "Children's Chapter Book Best Sellers" The New York Times. October 29, 2000.
- ^ "Children's Chapter Book Best Sellers" The New York Times. November 5, 2000.
- ^ "Gathering Blue". ALA American Library Association. American Library Association. Retrieved February 18, 2020.
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