@article{122145,
      author = {Ward, Frederick Norville,},
      url = {http://library.usi.edu/record/122145},
      title = {New and refined methods of trace analysis useful in  geochemical exploration : a collection of methods  additional to those presented earlier in U.S. Geological  Survey bulletins 1152 and 1289 /},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {122145},
      pages = {iv, 105 p. :},
      address = {Washington :},
      year = {1975},
}