Boothby, W. M. (2003). An introduction to differentiable manifolds and Riemannian geometry (Revised Second edition.). Academic Press.
Lua i Stíl Chicago (17ú heag.)Boothby, William M. An Introduction to Differentiable Manifolds and Riemannian Geometry. Revised Second edition. Amsterdam ; New York: Academic Press, 2003.
Lua MLA (8ú heag.)Boothby, William M. An Introduction to Differentiable Manifolds and Riemannian Geometry. Revised Second edition. Academic Press, 2003.
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