00503cam a22001452u 4500003000800000005001700008008004100025040003600066082001300102110004500115245007800160260006600238300002800304650002500332BD-DhUL20191209110151.0080220s1980    xxu ||| b     ||| s eng d  aericdbengcericddMvIdBD-DhUL  a372bBRP2 aBrazil Ministry of Education and Culture13aPrimary and Secondary Teaching/cBrazil Ministry of Education and Culture  aWashington :bBrazil Ministry of Education and Culture,c1971  a70 p. :bill. ;c23 cm.1 aElementary education