There are 4 titles associated with this person.

@book{ wphp_1930
  author={Falconbridge,Anna Maria},
  year={1794},
  title={Two voyages to Sierra Leone, during the years 1791-2-3, in a series of letters, By Anna Maria Falconbridge. To which is added, a letter from the author, to Henry Thornton, Esq. M.P. and chairman of the Court of Directors of the Sierra Leone Company.},
  publisher={},
  address={London},    }
@book{ wphp_1969
  author={Falconbridge,Anna Maria},
  year={1794},
  title={Two voyages to Sierra Leone, during the years 1791-2-3, in a series of letters, By Anna Maria Falconbridge. To which is added, a letter from the author, to Henry Thornton, Esq. M.P. and chairman of the Court of Directors of the Sierra Leone Company. The Second Edition.},
  publisher={},
  address={London},    }
@book{ wphp_1921
  author={Falconbridge,Anna Maria},
  year={1795},
  title={Two voyages to Sierra Leone, during the years 1791-2-3; in a series of letters, by Anna Maria Falconbridge. To which is added, a letter from the author, to Henry Thornton, ... The Third Edition.},
  publisher={},
  address={London},    }
@book{ wphp_14776
  author={Falconbridge,Anna Maria},
  year={1802},
  title={Narrative of Two Voyages to the River Sierra Leone, during the years 1791---2---3, performed by A.M. Falconbridge. With a succinct account of the Distresses and Proceedings of that Settlement; a description of the Manners, Diversions, Arts, Commerce, Cultivation, Customs, Punishment, &c. And every Interesting particular relating to the Sierra Leone Company. Also the present  State of the Slave Trade in the West Indies, and the improbability of its total Abolition. The Second Edition.},
  publisher={},
  address={London},    }