00000nam 2200000 4500 INLIS000000001171046 20231212020438 0010-1223000461 ta 231212###########################0#eng## 030.500 030.500 ENC y ENCYCLOPEDIA YOUNG PEOPLE'S SCIENCE ENCYCLOPEDIA : In Coopeation With The National College Of Education / NATIONAL COLLEGE OF EDUCATION Vol. 3 CHICAGO : CHILDRENS PRESS, 1964 297 hlm ; 25,5 cm ENCYCLOPEDIA -