on the maintance of a system of machines by one repairman /

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: omar, ahmed
Hōputu: Pukapuka
Reo:Ārapi
I whakaputaina: cairo : the institute of national planning, 1970.
Rangatū:External notes ; 953.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!