The nature and properties of soils/

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Brady, Nyle C.
Hōputu: Pukapuka
I whakaputaina: New York: Macmillan Publishing Company, c1984.
Putanga:9th ed.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!