LEADER 00000nam a2200133 a 4500 
001    1555398x 
008                                             
020    9780816078097 
100    Walker, Pamela 
245  0 Facts on file science expermients, space and astronomy 
       experiments 
260    Facts on File, 2010 
907    .b1555398x|b10-06-15|c09-29-11 
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998    ccq|b-  -  |cm|db|en|feng|gxx |h0