TY  - BOOK
TI  - Trends, needs and priorities of environmental education since the Tbilisi confrence: An overview : (preliminary report of a world survey) 
AV  - LB1027 .T73 1983
PY  - 1983///
CY  - nAIROBI
PB  - UNESCO : Division of Science, Technical and Vocational Education
KW  - Envirnmental education
KW  - Conference
ER  -