00436nam a2200145Ia 4500003000500000005001700005008004100022020001800063040001400081082001800095110002100113245009200134260005400226300001000280322820240830121422.0210816s9999    xx            000 0 und d  a9781431200283  aRDAc3228  aJ ST 530 PHYS  aLearning Channel 0aPhysical sciences. Grade 12 : machanics : learner's activity book  Johannesburg, 2008    aJohannesburg:bLearning Channel (Pty) Ltd;c2010.  c19 cm