There are 2 titles associated with this firm.

@book{ wphp_7709
  author={Centlivre,Susanna},
  year={1770},
  title={The Busy Body, a Comedy. As it is now acted at the Theatres Royal in Drury-Lane and Covent-Garden. Written by Mrs. Susanna Centlivre.},
  publisher={S. Langford \& Robert Smith \& P. Stokes \& M. Collin \& H. Cooper},
  address={London},    }
@book{ wphp_5099
  author={Petersen,Johanna Eleonora},
  year={1772},
  title={The nature and necessity of the new creature in Christ, stated and described, according to he art's [sic] experience and true practice. By Joanna Eleonora de Merlau. Translated from the German, by Francis Okely. ...},
  publisher={},
  address={London},    }