Numerical ranges of operators on normed spaces and of elements of normed algebras

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Bonsall, F.F
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: London : Cambridge at the University Pr, 1971.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!