Society and population.

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: HEER, David M.
Hōputu: Pukapuka
I whakaputaina: Englewood, Prentice-Hall, 1968.
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!