There are 3 titles associated with this firm.

@book{ wphp_5163
  author={Montagu,Mary Wortley},
  year={1764},
  title={Letters of the Right Honourable Lady M--y W---y M----e: written, during her travels in Europe, Asia and Africa, to persons of distinction, Men of Letters, &c. in different Parts of Europe. Which Contain, Among other curious Relations, Accounts of the Policy and Manners of the Turks; Drawn from Sources that have been inaccessible to other Travellers.},
  publisher={A. Homer \& P. Milton},
  address={London},    }
@book{ wphp_5342
  author={Montagu,Mary Wortley},
  year={1764},
  title={Letters of the Right Honourable. Lady M-y W-y M-e: written, during her travels in Europe, Asia, and Africa, to persons of distinction, men of letters, &c. in different parts of Europe. Which contain, among other curious relations, accounts of the policy and manners of the Turks; drawn from sources that have been inaccessible to other travellers. In two volumes.},
  publisher={A. Homer \& P. Milton},
  address={London},    }
@book{ wphp_5401
  author={Montagu,Mary Wortley},
  year={1766},
  title={Letters of the Right Honourable Lady M--y W---y M----e: written, during her travels in Europe, Asia and Africa, to persons of distinction, men of letters, &c. in different parts of Europe. Which contain, among other curious relations, accounts of the policy and manners of the Turks; drawn from sources that have been inaccessible to other travellers.},
  publisher={A. Homer \& P. Milton},
  address={London},    }