Operational mathematics

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: CHURCHILL, Ruel V.
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: New York McGraw-Hill c1958
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!