A better articulation of the fundamentalist idea you will not find than J. Gresham Machen's Christianity and Liberalism.
A better deal you will not find than Westminster Bookstore's Classic of the Month special.
If you're a pastor and you haven't read it, you should. Chances are it'll change your mind or give you better arguments for what you already believe. If the next generations are to be persuaded of the historic, biblical idea of fundamentalism, it will be through this kind of argument.