An Investment in Knowledge: the first dozen years of the National Science Foundation's summer institutes programs to improve secondary shool science and mathematics teaching, 1954-1965/

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Krieghbaum, Hillier
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: NewYork: Univ.Pr., c1969
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!