There are 3 titles associated with this firm.

@book{ wphp_1073
  author={Wilkinson,Sarah Scudgell},
  year={1814},
  title={The spectres; or Lord Oswald and Lady Rosa, including an account of the Marchioness of Civetti, who was basely consigned to a dungeon beneath her castle ... by Sarah Wilkinson.},
  publisher={Langley and Co. \& },
  address={London},    }
@book{ wphp_1073
  author={Wilkinson,Sarah Scudgell},
  year={1814},
  title={The spectres; or Lord Oswald and Lady Rosa, including an account of the Marchioness of Civetti, who was basely consigned to a dungeon beneath her castle ... by Sarah Wilkinson.},
  publisher={Langley and Co. \& },
  address={London},    }
@book{ wphp_1073
  author={Wilkinson,Sarah Scudgell},
  year={1814},
  title={The spectres; or Lord Oswald and Lady Rosa, including an account of the Marchioness of Civetti, who was basely consigned to a dungeon beneath her castle ... by Sarah Wilkinson.},
  publisher={Langley and Co. \& },
  address={London},    }