@article{505009,
      note = {Reproduction of original from Harvard University Houghton  Library.},
      author = {Barker, John,},
      url = {http://library.usi.edu/record/505009},
      title = {The nature aud [sic] excellency of the heavenly treasure,  and the way to obtain it. A sermon preach'd at the  Charity-School, in Gravel-Lane, Southwark, January 2,  1720/21. By John Barker ... [electronic resource] :},
      publisher = {printed for John Clark,},
      recid = {505009},
      pages = {40p. ;},
      address = {London :},
      year = {1721},
}