There are 4 titles associated with this firm.

@book{ wphp_16086
  author={Swift,Jonathan and Witherspoon,John and Piozzi,Hester Lynch Thrale and Franklin,Benjamin and Cotton,Nathaniel and Craggs-Nugent,Robert},
  year={1813},
  title={Letters on Courtship and Marriage. By Various Authors.},
  publisher={Daniel Fenton \& James Jefferson Wilson \& },
  address={Trenton},    }
@book{ wphp_15389
  author={Piozzi,Hester Lynch Thrale and Cotton,Nathaniel and Franklin,Benjamin and Swift,Jonathan and Witherspoon,John and Nugent,Mr.},
  year={1813},
  title={Letters on courtship and marriage: To which are added, Witherspoon's Letters on marriage.--Swift's Letter to a newly married lady. Mrs. Piozzi's Letter to a gentleman newly married, &c. &c.},
  publisher={Daniel Fenton \& James Jefferson Wilson \& },
  address={Trenton},    }
@book{ wphp_16086
  author={Swift,Jonathan and Witherspoon,John and Piozzi,Hester Lynch Thrale and Franklin,Benjamin and Cotton,Nathaniel and Craggs-Nugent,Robert},
  year={1813},
  title={Letters on Courtship and Marriage. By Various Authors.},
  publisher={Daniel Fenton \& James Jefferson Wilson \& },
  address={Trenton},    }
@book{ wphp_15389
  author={Piozzi,Hester Lynch Thrale and Cotton,Nathaniel and Franklin,Benjamin and Swift,Jonathan and Witherspoon,John and Nugent,Mr.},
  year={1813},
  title={Letters on courtship and marriage: To which are added, Witherspoon's Letters on marriage.--Swift's Letter to a newly married lady. Mrs. Piozzi's Letter to a gentleman newly married, &c. &c.},
  publisher={Daniel Fenton \& James Jefferson Wilson \& },
  address={Trenton},    }