TY  - BOOK
AU  - Cohen,Louis
AU  - Manion,Lawrence
TI  - Research methods in education
SN  - 0709934286
AV  - LB1028.C64 1985 
PY  - 1985///
CY  - London
PB  - Croom Helm
KW  - Education
KW  - Research
ER  -