00314nam a2200121Ia 4500008004100000040001600041041001200057082001500069100002100084245004700105260002900152300001100181230917s9999||||xx |||||||||||||| ||und||  e82104aMAIN  aEnglish  a372.3 E52G  aEllington, Henry 0aGames and simulations in science education  aLondonbKogan Pagec1981  a261 p.