I know there's an OU library, and I can recommend Google Scholar too ... but there is a fallback position that works when these have failed. Believe it or not, Amazon.
Going on nothing more than 'Quoted in Mountcastle, 'On the Move' I track down the author John W Mountcastle and various books of his, including this one, on Amazon. I don't need to buy it, just reference it correctly unlike the author where I first found him.
A module could be written entirely around a set of books, ideally eBooks, available on Amazon. A canny college might prepurchase a dozen such books and preload them onto something like a Kindle 'Paperwhite' and give them to students. I'd buy it; the idea at least.
The University of Northumbria preloaded all the books for First Year Law Students course onto an iPad which they gave to students back in 2011.
No need for use of an e-reader even (after all that costs and can be lost/stolen). All you need is a library browsing interface over which the student can peruse the book(s) of interest. Controlling the e-book usage is quite an interesting area and it seems one business model is to not 'loan' out an e-book bought by an institute (i.e. an e-copy is not transferred to a local repository - the loanee's device, whatever that may be) but rather link to it at a third party that maintains an account with the loanee's institution. That way downloading/printing individual pages that are must have can be charged to the institute's account (I encountered this recently). Makes you wonder if we're headed paper free. Personally speaking, I can now count on one hand how many pages I print off at work a year since we were bought out by a larger company with a keen interest in developing the IT side of things. It was hard to train myself, but I am getting there.
By browsing interface, I am implying something like an internet browser.