Texts
These texts will may not be
available from the college book store. You should be able to
get second hand books online. Try searching on AddALL
or Campusi for prices at various online stores. Make sure you search with the
correct ISBN number and for the correct edition.
Winter Texts
I may be posting some optional textbooks and other resources later, so keep checking back.
Nonlinear Dynamics and Chaos:
With Applications to Physics, Biology, Chemistry, and Engineering by Steven H. Strogatz ISBN: 0738204536 Publisher: Perseus Books Publish Date: 15 January, 2001 

Applied Partial Differential Equations, Fourth Edition by Richard Haberman ISBN: 0130652431 Publisher: Prentice Hall; 4 edition Publish Date: March 24, 2003 

Div, Grad, Curl, and All That: An Informal Text on Vector Calculus, Fourth Edition by H. M. Schey ISBN: 0393925161 Publisher: W. W. Norton & Company; 4Rev Ed edition Publish Date: January 2005  
Perfect Form: Variational Principles, Methods, and Applications in Elementary Physics by Don S. Lemons ISBN: 0691026637 Publisher: Princeton Univ Pr Publish Date: 03 March, 1997 

e: The Story of a Number by Eli Maor Publisher: Princeton University Press (May 4, 1998) ISBN: 0691058547 
Fall Texts
Differential Equations 2nd Ed. Blanchard and Devaney ISBN 0534385141 Brooks/Cole (2002) 

Linear Algebra and its Applications 3rd Ed. Lay, David ISBN: 0201709708 Pearson Education Inc, (2003) (Optional  but recommended) Student's Study Guide, 3/E by Lay ISBN: 020177013X 

Multivariable Calculus: Concepts and Context 2nd Ed. Stewart, James ISBN: 0534378633 Brooks/Cole (2001) (If you want to have access to material from Single Variable calculus as well the following edition includes both for only a bit more: Calculus  Concepts and Contexts 2nd Edition ISBN: 0534377181 ) 

The Mathematical Experience Davis, P. and Hersh R. ISBN 0395929687 Houghton Mifflin Co (1999) 