TY  - BOOK
AU  - Butler,John M
AU  - Rice,Laura N.
AU  - Wagstaff,Alice K.
TI  - Quantitative naturalistic research: an introduction to naturalistic observation and investigation 
U1  - 151.26 
PY  - 1963///
CY  - Englewood Cliffs, NJ.
PB  - Prentice-Hall
KW  - Análisis factorial
N1  - Incluye bibliografía
ER  -