TY  - BOOK
AU  - Dera, V. G.
TI  - Forms, methods and media for dissemination of scientific and technical knowledge
PY  - 1979///
CY  - М.
PB  - ВИНИТИ
KW  - Наука
KW  - Пропаганда
KW  - nlr_sh1
KW  - Ч21х
KW  - rubbk
ER  -