Mobile units for vocational education: USSR /
Mobile units for vocational education: USSR /
S.Y. Batyshev.
- Paris : UNESCO, 1986.
- 52 p. ; il., fot.
- Studies in technical and vocational education ; 18. .
371.6: 377 (47+57) =20BAT No.18.
371.6: 377 (47+57) =20BAT No.18.