@article{233356,
      note = {Relief shown by contours and spot heights.},
      author = {Drake, Avery Ala,},
      url = {http://library.usi.edu/record/233356},
      title = {Geologic map of the Piedmont in the Savage and Relay  quadrangles, Howard, Baltimore, and Anne Arundel counties,  Maryland [microform] /},
      publisher = {The Survey,},
      recid = {233356},
      pages = {1 map +},
      address = {Reston, VA :},
      year = {1998},
}