Soil erosion and conservation /

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Morgan, R. P. C.
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Harlow, Essex, England : New York, NY : Longman ; J. Wiley, 1995.
Putanga:2nd ed.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!