Não informado. (2003). Differential Geometry and its Applications. North-Holland.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Differential Geometry and Its Applications. Amsterdam: North-Holland, 2003.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Differential Geometry and Its Applications. North-Holland, 2003.
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