TY  - BOOK
AU  - Pokhoduya,I.K.
AU  - Tonkal,V.K.
TI  - Academy of sciences of the ukrainian SSR
U1  - 507.2094771 
PY  - 1980///
CY  - Kiev
PB  - Naukova Dumka
KW  - Academia nauk Ukrain SKO/RSR
KW  - Science
KW  - Study and teaching
KW  - education
ER  -