Oprea, J. (2007). Differential geometry and its applications. Mathematical Association of America.
Tohutoru Kātū Chicago (17th ed.)Oprea, John. Differential Geometry and Its Applications. Washington, D.C.: Mathematical Association of America, 2007.
Tohutoro MLA (9th ed.)Oprea, John. Differential Geometry and Its Applications. Mathematical Association of America, 2007.
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