00365nam a2200097Ia 4500245005300000100005300053942000700106008004100113999001900154952009400173 0aHow Big? How Heavy? How Dense? A Look at Matter   a BOOTHROYD, Jennifer  Minneapolis, 2011  977292  cBK210818s9999    xx            000 0 und d  c477332d477331  00104070aTHEMLbTHEMLd2021-08-23g55.00l0p3322810060644r2021-08-23w2021-08-23yBK