@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} }