@article{240802,
      note = {Relief shown by contours and spot heights.},
      author = {Jachens, Robert C. and Roberts, Carter W.},
      url = {http://library.usi.edu/record/240802},
      title = {Aeromagnetic map of the Palo Alto 1:100,000 quadrangle,  California [microform] /},
      publisher = {The Survey ;},
      recid = {240802},
      pages = {1 map ;},
      address = {[Reston, Va.] :},
      year = {1993},
}