Calculus of variations.

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: ELSGOLC, L.E
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Oxford, Pergamon Press, c1961.
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UL

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Tau karanga: 517.4 B49c
Tārua Not For Loan