There are 3 titles associated with this firm.

@book{ wphp_18920
  author={Opie,Amelia},
  year={1829},
  title={Illustrations of lying, in all its branches. By Amelia Opie},
  publisher={John Calvin Gerrish},
  address={Exeter},    }
@book{ wphp_18921
  author={Opie,Amelia},
  year={1832},
  title={Illustrations of lying, in all its branches. By Amelia Opie},
  publisher={John Calvin Gerrish},
  address={Exeter},    }
@book{ wphp_15215
  author={Porter,Anna Maria},
  year={1832},
  title={The Hungarian Brothers. In Two Volumes. By Miss Ann Maria Porter.},
  publisher={John Calvin Gerrish},
  address={Exeter},    }