Paper  bibtex   

@book{ schwartz_paradox_2004,
  address = {New York},
  title = {The paradox of choice : why more is less},
  volume = {1st},
  isbn = {0060005688},
  url = {http://www.loc.gov/catdir/description/hc043/2003053138.html},
  publisher = {Ecco},
  author = {Schwartz, Barry},
  year = {2004}
}