TY  - BOOK
AU  - Unesco.
TI  -  History of mankind: cultural and scientific development 
U1  - 901.9 UNE-H 1965 Vol.2 
PY  - 1965///
CY  - London
PB  - George allen and unwin
KW  - Civilization--- scientific development
N1  - World history; Development of the language and writing
ER  -