There are 5 titles associated with this firm.

@book{ wphp_9800
  author={Riccoboni,Marie Jeanne},
  year={1765},
  title={The History of the Marquis de Cressy. Translated from the French.},
  publisher={John Balfour \& Thomas Becket and P. A. De Hondt},
  address={London},    }
@book{ wphp_3432
  author={Keir,Elizabeth},
  year={1785},
  title={Interesting memoirs. By a lady. In two volumes. ...},
  publisher={Thomas Cadell [London] \& Andrew Strahan [1788-1806, 1817-1831] \& William Creech \& John Balfour},
  address={London},    }
@book{ wphp_3446
  author={Keir,Elizabeth},
  year={1785},
  title={Interesting memoirs. By a lady. In two volumes. The Second Edition.},
  publisher={Thomas Cadell [London] \& Andrew Strahan [1788-1806, 1817-1831] \& William Creech \& John Balfour},
  address={London},    }
@book{ wphp_3347
  author={Keir,Elizabeth},
  year={1786},
  title={Interesting memoirs. By a lady. In two volumes. ...},
  publisher={Thomas Cadell [London] \& Andrew Strahan [1788-1806, 1817-1831] \& William Creech \& John Balfour},
  address={London},    }
@book{ wphp_4734
  author={Kelly,Isabella},
  year={1794},
  title={A collection of poems and fables, by Mrs. Isabella Kelly.},
  publisher={John Debrett [179 Piccadilly] \& John Balfour \& William Richardson},
  address={London},    }