@article{256098,
      note = {Cover title.},
      author = {Kunk, Michael J. and Burton, William C.},
      url = {http://library.usi.edu/record/256098},
      title = {40Ar/39 Ar age-spectrum data for amphibole, muscovite,  biotite, and K-feldspar samples from metamorphic rocks in  the Blue Ridge anticlinorium, northern Virginia [microform]  /},
      publisher = {U.S. Geological Survey :},
      recid = {256098},
      pages = {110 p. :},
      address = {[Denver, CO] :},
      year = {1999},
}