Rịba ama amaokwu dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka akụkụ ahụ: N'akụkụ: Na Icons of Rock: Encyclopedia of the Legends Who Changed Music Forever, Scott Schinder na Andy Schwartz na-akọwa mgbanwe egwu egwu nke Beatles: Ajụjụ: Onye kọwara mgbanwe egwu egwu nke Beatles?
Scott Schinder na Andy Schwartz