Referencing resources in node_modules folder

I am currently in the process of writing my first Node.js app. I recently installed bootstrap via the npm (following instructions on bootstrap's web site) and was wondering the "standard" way of referencing the bootstap.min.css (and other files of interest). It is best to use grunt/gulp to copy (bundle and minify) the resources I need into my project structure?

Any help would be appreciated.