There are 2 titles associated with this person.

@book{ wphp_20006
  author={Stevens,Grace Buchanan},
  year={1818},
  title={Llewellen, or The vale of Phlinlimmon: a novel.  In two volumes.},
  publisher={M. Carey and Son [126 Chestnut Street] \& },
  address={Philadelphia},    }
@book{ wphp_9141
  author={Stevens,Grace Buchanan},
  year={1818},
  title={Llewellen, or, The Vale of Phlinlimmon: A Novel. In Three Volumes},
  publisher={Macredie, Skelly, and Co. \& Thomas and George Underwood \& },
  address={Edinburgh},    }