There are 3 titles associated with this firm.

@book{ wphp_315
  author={Campe,Joachim Heinrich},
  year={1800},
  title={Pizarro; or, The Conquest of Peru. As Related by a Father to His Children, and Designed for the Instruction of Youth. In Two Volumes. Translated from the Germa of J.H. Campe (author of the Robinson Crusoe) By Elizabeth Helme author of Instructive Rambles in London and its environs, The Abridgement of Plutarch's lives etc. etc.},
  publisher={William Porter [69 Grafton Street] \& Patrick Wogan [23 Old Bridge] \& Bernard Dornin [108 Grafton Street] \& Thomas Jackson [Parliament Street] \& John Rice [Grafton Street] \& C. Mercier \& },
  address={London},    }
@book{ wphp_12550
  author={Robinson,Mary},
  year={1803},
  title={Memoirs of the late Mrs. Robinson. Written by Herself. In Two Volumes.},
  publisher={Richard Phillips [St. Paul's Churchyard] \& },
  address={London},    }
@book{ wphp_13056
  author={Robinson,Mary},
  year={1803},
  title={Memoirs of the late Mrs. Robinson. Written by Herself. In Two Volumes.},
  publisher={Richard Phillips [St. Paul's Churchyard] \& },
  address={London},    }