I tiakina i:
Ngā taipitopito rārangi puna kōrero
Ngā kaituhi matua: Janning, Edward A., And Others
Hōputu: Recurso educativo Open Access
Reo:en
I whakaputaina: 1968
Ngā marau:
Urunga tuihono:https://eric.ed.gov/?id=ED024407
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!