na INLIS000000000041073 20151118230845 190715||||||||| | ||| |||| ||eng|| 0-7496-7433-4 0010-111500000040992 eng 500 500 NAN s Dorothy Jackson Science experiments with simple machines [s.l.] Grolier 2007 32 hlm. : foto ; 27 cm. Rutin 2008 SAINS Nankivell-Aston, Sally 128023 128023