@article{73851,
      author = {Silverstein, Alvin. and Silverstein, Virginia B., and  Ames, Lee J.,},
      url = {http://library.usi.edu/record/73851},
      title = {The excretory system; how living creatures get rid of  wastes},
      publisher = {Prentice-Hall},
      abstract = {Describes the construction and functions of the various  organs of the excretory system.},
      recid = {73851},
      pages = {74 p.},
      address = {Englewood Cliffs, N.J.,},
      year = {1972},
}