Veblen, O., & Whitehead, J. H. C. (1932). The foundations of differential geometry. The University Press.
Lua i Stíl Chicago (17ú heag.)Veblen, Oswald, agus John Henry Constantine Whitehead. The Foundations of Differential Geometry. Cambridge [Eng.]: The University Press, 1932.
Lua MLA (9ú heag.)Veblen, Oswald, agus John Henry Constantine Whitehead. The Foundations of Differential Geometry. The University Press, 1932.
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