If your Calculus III is the same as mine was it is vector calculus.

You will want to review are

1. Know how to take derivatives.

2. Know how to integrate things.

a. u substitutions.

b. integration by parts.

c. Trig substitutions.

3. Just to emphasize what I said above you will need all of you 1-d calculus the above is just the basic stuff.

4. Know your Vector algebra. If you have taken linear Algebra review How to take determinants especially 3 by 3 matrices.