There are 3 titles associated with this person.

@book{ wphp_7508
  author={Brown,Sarah},
  year={1777},
  title={A letter to a lady on the best means of obtaining the milk, in order to the suckling of the infant.},
  publisher={},
  address={London},    }
@book{ wphp_7510
  author={Brown,Sarah},
  year={1777},
  title={A letter to a lady on the mode of conducting herself during pregnancy. Also on the management of the infant.},
  publisher={},
  address={London},    }
@book{ wphp_7333
  author={Brown,Sarah},
  year={1779},
  title={A letter to a lady on the management of the infant.},
  publisher={},
  address={London},    }