TY - BOOK AU - Glaser,Barney G. AU - Strauss,Anselm L. TI - The discovery of grounded theory: strategies for qualitative research T2 - Observations SN - 9780202302607 U1 - 303.4 G54t PY - 1999/// CY - Chicago PB - Aldine KW - Ciencias sociales KW - Investigación ER -