TY  - BOOK
AU  - Creswell,John W.
TI  - Educational research: Planning, conducting, and evaluating quantitative and qualitative research
SN  - 9780133549584
U1  - 370.72 
PY  - 2015///
CY  - Upper Saddle River, NJ.
PB  - Pearson 
KW  - EDUCACION - INVESTIGACION - METODOLOGIA
N1  - índice, apéndice
ER  -