Lee ebe e dere ya n'okpuru ebe a ma zaa ajụjụ a na-eso ya n'otu asụsụ ahụ e ji dee ebe ahụ: William Howard Stein (June 25, 1911 <unk> February 2, 1980) bụ onye Amerịka bụ ọkà n'ihe gbasara kemịkalụ. Ajụjụ: kedu mgbe Wiliam Howard Stein nwụrụ?
Febụwarị 2, 1980