--am us  eng
++000    00000nam a2200000 a 4500
++020    |a074605128X
++090    |a599.74 HEL
++100 1  |aHelbrough, Emma
++245 10 |aMission : Polar Bears Rescue /|cNancy F. Castaldo , Karende Seve , Daniel Raven-Ellison
++250    |a1st ed.
++260    |aWashington:|bNational Geographic Society,|c2014.
++300    |a112 p.:|bcol.ill.;|c28 cm.
++440  0 |aNational Geographic  Kids
++500    |aIncludes Index
++650    |aBears Juvenile Literature
++690    |aInt. Science_科學