00522pamaa2200181 4500 0000027769 20100923090000.0 100923 eng 000713598x QC21.2 DOB 2002 Dobson Physics Ken Dobson, David Grace and David Lovett. London: Collins Educational, 2002. ii, 684p.: ill.; 27cm. Physics Grace, David Lovett, David http://www.CollinsEducation.com