TY  - BOOK
AU  - Isaac,Stephen
AU  - Michael,William Burton
TI  - Handbook in research and evaluation: a collection of principles, methods, and strategies useful in the planning, design, and evaluation of studies in education and the behavioral sciences 
AV  - BF76.5 I8.3
PY  - 1971///
CY  - San Diego California, E.U.A.
PB  - Robert R. Knapp
KW  - Investigacion psicológica
KW  - Educación
KW  - Investigación
ER  -