--am us  eng
++000    00000nam a2200000 a 4500
++020    |a9781524789671
++090    |a943 MED
++100 1  |aMedina, Nico
++245 10 |aWhat Was the Berlin Wall ? /|cby Nico Medina ; ill. by Stephen Marchesi
++250    |a1st ed.
++260    |aNew York:|bPenguin Workshop,|c2019.
++300    |a108 p.:|bill.;|c20 cm.
++440    |aWhat Is...?
++650    |aBerlin (Germany) History 1945-1990  Juvenile Literature
++650    |aBerlin Wall, Berlin, Germany, 1961-1989 Juvenile Literature
++650    |aCold War Juvenile Literature
++700 1  |aMarchesi, Stephen