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1I whakaputaina 1988Ngā marau “...Age distribution (Demography) New Zealand...”
Pukapuka -
2I whakaputaina 2007Ngā marau Connect to electronic resource
Archived copy available at the National Library of New Zealand
Tāhiko īPukapuka -
3ā- McPherson, Mervyl J.Ngā marau Archived copy available at the National Library of New Zealand
I whakaputaina 2009
Tāhiko īPukapuka