TY  - BOOK
AU  - Vockell, Edward L.
TI  - Educational research
SN  - 24230707
PY  - 1983///
CY  - New York :;London
PB  - Macmillan ;;Collier Macmillan
KW  - Education
KW  - Research
N1  - Includes bibliographies and indexes
ER  -