## References

The following introductory calculus textbook begins with a very thorough discussion of functions, limits and continuity.

- Michael Spivak, Calculus, 4th edition, Publish or Perish, 2008.

The following introductory calculus textbook begins with a very thorough discussion of functions, limits and continuity.

- Michael Spivak, Calculus, 4th edition, Publish or Perish, 2008.