TY  - BOOK
AU  - Lawal ,mb [mohammed a . a
TI  - Environmental education workshop and seminar: proceeding ,m b 1990 . ,vol a .a
SN  - 9783269127
AV  - e6 1994< 13 . 
PY  - 1994///
CY  - Lagos
PB  - Marian Ajibola ent
ER  -