There are 3 titles associated with this person.

@book{ wphp_15050
  author={Renwick,Michael},
  year={1783},
  title={Letters on the medical service in the Royal Navy; with occasional remarks: in which are included new observations on the general practice of physic, and the best means for preserving the health of His Majesty's seamen.},
  publisher={William Renwick \& },
  address={London},    }
@book{ wphp_14917
  author={Renwick,Michael},
  year={1788},
  title={An address, to the inhabitants in general of Great Britain, and Ireland; Relating to a Few of the Consequences which must Naturally Result from the Abolition of the Slave Trade,},
  publisher={},
  address={Liverpool},    }
@book{ wphp_14918
  author={Renwick,Michael},
  year={1788},
  title={An address, to the inhabitants in general of Great Britain, and Ireland; Relating to a Few of the Consequences which must Naturally Result from the Abolition of the Slave Trade,},
  publisher={},
  address={Liverpool},    }