@book{ dey_qualitative_1993,
  address = {London},
  title = {Qualitative data analysis: a user-friendly guide for social scientists},
  isbn = {0415058511 9780415058513 {041505852X}  9780415058520  9780203412497 0203412494},
  shorttitle = {Qualitative data analysis},
  language = {English},
  publisher = {New York, {NY} : Routledge},
  author = {Dey, Ian},
  year = {1993}
}