Mezhdunarodnoe sotrudnichestvo uchenykh i natsional'nye granitsy.
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Russian |
| Cyhoeddwyd: |
Lond. :
Macmillan,
1972.
|
| Pynciau: |
| Disgrifiad o'r Eitem: | Added t.p. in English: The Medvedev papers: fruitful meetings between scientists of the world; secrecy of correspondene is guaranteed by law. |
|---|