There are 3 titles associated with this firm.

@book{ wphp_11764
  author={Costello,Louisa Stuart},
  year={1815},
  title={The Maid of the Cyprus Isle, and Other Poems. By Louisa S. Costello.},
  publisher={Sherwood, Neely, and Jones \& Edmund Lloyd [23 Harley Street] \& John Sharpe [Piccadilly] \& James Harper and Co. [London] \& Richard Rees \& John Walker VI \& },
  address={London},    }
@book{ wphp_797
  author={Costello,Louisa Stuart},
  year={1815},
  title={The Maid of the Cyprus Isle, and Other Poems. By Louisa S. Costello. Second Edition.},
  publisher={Sherwood, Neely, and Jones \& Edmund Lloyd [23 Harley Street] \& John Sharpe [Piccadilly] \& James Harper and Co. [London] \& Richard Rees \& John Walker VI \& },
  address={London},    }
@book{ wphp_728
  author={Downing,Harriet},
  year={1816},
  title={Mary; or, Female Friendship: A Poem, in Twelve Books. By Harriet Downing.},
  publisher={James Malcott Richardson \& Thomas and Joseph Allman [Princes St] \& James Harper and Co. [London] \& },
  address={London},    }