If this is your first degree, or first in some years, you'll find that the degree course starts with a library course and usually some exercises in how to conduct literature reviews. This has become much more important in recent years in universities, and rightly so.
You'll find for anything after 2nd year undergraduate work, and most postgraduate work, you're using very little in the way of books. Most of your material will come from the massive body of literature published in peer review academic journals.
A good starting point for that, if you don't yet have university library access is to use google scholar (just go to google, search on the word "scholar" and you'll find it).
Now having said that, one of the most significant researchers and writers on this topic is Professor James Reason, formerly of the University of Manchester. His book "The Human Contribution", will give you a really good high quality introduction.
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