@article{226383,
      note = {Prepared on behalf of the National Aeronautics and Space  Administration.},
      author = {Trask, N. J.},
      url = {http://library.usi.edu/record/226383},
      title = {The contributions of Ranger photographs to understanding  the geology of the Moon,},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {226383},
      pages = {iii, 16 p. :},
      address = {Washington,},
      year = {1972},
}