A tutor text the slide rule/

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Saffold, Robert
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Garden city, New York : Doubleday, 1962
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!