@article{53664,
      author = {Ley, Willy,},
      url = {http://library.usi.edu/record/53664},
      title = {Gas giants; the largest planets.},
      publisher = {McGraw-Hill},
      abstract = {Describes the discovery and physical characteristics of  Jupiter, Saturn, Uranus, and Neptune, the four largest  planets of the solar system.},
      recid = {53664},
      pages = {143 p.},
      address = {New York,},
      year = {1970},
}