na 280114||||||||| | ||| |||| || || BHTDB2801201400028 20140128161248.463 012-280114002860 SBPKHAT Eng a-io [23] 500.69 500.69 PAR t Parker, Bertha Morris The science and his tools / Bertha Morris Parker New York : Row, Peterson, and Company, 1960 36 hlm. : ilus. ; 22 cm. The basic science education series Sains SBPKHAT