na INLIS000000000013044 20140307072124.0 a ||| | 170530| ||| | $a 0-471-32816-2 $a 0010-031400000000342 $a 520. $a 520. VAN a c.2 $a John Wiley $a A+ Projects Projects In Astronomy : Winning Exprements For Science Fairs And Extra Credit $b Winning Exprements For Science Fairs And Extra Credit $a Ke-1 $a Bandung $b Pakar Raya $c 2004 $a Arpus kab. Magetan $a 31.224-0