00297nam a2200121Ia 450000500170000000800410001704100080005808200150006610000180008124500260009926000410012530000090016620260720174633.0260720s2005    xx            000 0 und d  aeng  a530.1 BARS  aBarry, M Dana  aScience fair projects  aNew DelhibAcademic Publishersc2005  a136p