Man in his working environment a worker's education manual.

Man in his working environment a worker's education manual.

Detaylı Bibliyografya
Materyal Türü: Kitap
Dil:English
Baskı/Yayın Bilgisi: Geneva International Labour Office c1979.
Konular:
Man > Influence on nature > Developing countries.
Conservation of natural resources > Developing countries.
Man > Influence on nature > Study and teaching.