TY  - BOOK
AU  - Дера, В.Г.
TI  - Forms, methods and media for dissemination of scientific and technical knowledge
T2  - The Training material
VL  - [8]
PY  - 1979///
CY  - Moscow
PB  - Б. и.
KW  - Ч231.23,0
KW  - rubbk
ER  -