There are 4 titles associated with this firm.

@book{ wphp_15589
  author={Sandham,Elizabeth},
  year={1815},
  title={The twin sisters, or, The advantages of religion. By Miss Sandham, author of many approved works for young persons. Second American Edition.},
  publisher={William Slade, Jun. \& },
  address={Middlebury (village)},    }
@book{ wphp_19520
  author={Sandham,Elizabeth},
  year={1815},
  title={The twin sisters, or, The advantages of religion. By Miss Sandham, author of many approved works for young persons. Second American Edition.},
  publisher={William Slade, Jun.},
  address={Middlebury (village)},    }
@book{ wphp_15589
  author={Sandham,Elizabeth},
  year={1815},
  title={The twin sisters, or, The advantages of religion. By Miss Sandham, author of many approved works for young persons. Second American Edition.},
  publisher={William Slade, Jun. \& },
  address={Middlebury (village)},    }
@book{ wphp_19520
  author={Sandham,Elizabeth},
  year={1815},
  title={The twin sisters, or, The advantages of religion. By Miss Sandham, author of many approved works for young persons. Second American Edition.},
  publisher={William Slade, Jun.},
  address={Middlebury (village)},    }