There are 3 titles associated with this firm.

@book{ wphp_4499
  author={Robertson,Hannah},
  year={1766},
  title={The young ladies school of arts: containing, a great variety of practical receipts, ... by Mrs Hannah Robertson.},
  publisher={},
  address={Edinburgh},    }
@book{ wphp_4433
  author={Robertson,Hannah},
  year={1767},
  title={The young ladies school of arts. Containing, a great variety of practical receipts, in Gum-Flowers Filligree Japanning Shell-Work Gilding Painting Cosmetics Jellies Preserves Cakes Cordials Creams Jamms Pickles Candying Made Wines Clear Starching, &c. Also, a great many Curious Receipts, both useful and entertaining, never before published. By Mrs Hannah Robertson. The second edition, with large additions.},
  publisher={},
  address={Edinburgh},    }
@book{ wphp_4431
  author={Robertson,Hannah},
  year={1770},
  title={The young ladies school of arts. Containing a great variety of practical receipts, in gum-flowers filligree japanning shell-work gilding painting cosmetics jellies preserves cakes cordials creams jamms pickles canding made wines clear starching, &c. Also, a great many curious receipts, both useful and entertaining, never before published. By Mrs Hannah Robertson. The Third Edition, Corrected.},
  publisher={},
  address={Edinburgh},    }