@article{75460,
      recid = {75460},
      author = {Branley, Franklyn M. and Borten, Helen.},
      title = {What makes day and night /},
      publisher = {Crowell},
      address = {New York,},
      pages = {1 v. (unpaged) :},
      year = {1961},
      abstract = {A simple explanation of how the rotation of the earth  causes night and day.},
      url = {http://library.usi.edu/record/75460},
}