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See p. 164-167 of Bredon's Topology and Geometry. ( http://books.google.com/books?id=G74V6UzL_PUC ) Page 166 (not viewable online) is just a sequence of nine pictures demonstrating the waiter's trick.
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See p. 164-167 of Bredon's Topology and Geometry. ( http://books.google.com/books?id=G74V6UzL_PUC ) Page 166 (not viewable online) is just a sequence of nine pictures demonstrating the waiter's trick.