Decline and fall of the Roman empire why did it collapse?/

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: KAGAN, Donald
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Boston: D.C. Heath; 1962.
Rangatū:(Problems in European Civlization)
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!