Soil biology guide.

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Ētahi atu kaituhi: Dindal, Daniel L. (Editor)
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: New York, USA : Wiley, 1990.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!