World sources of energy

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Price, Brian P.
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: London: Macdonald Educational, c1975.
Rangatū:MacDonald Educational Colour Units
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!