RecordNumber

20243

Title

Intergovernmental conference on environment education tibilis, SSR, 1977

Author Statement

Environmental education in the light of the Tbilis conference

Publication

Unesco

Publication Year

[c1977]

Collation

100p

Subject

Sanitary Engineering-Congresses

Main Class

614

Sub Class

.7

Cutter no

I61

Date

1977

وارد كنندة اطلاعات

soltani^d//