Here are a few of the statistics books that we have in the University Library that you may find useful. The majority of queries we deal with are statistics based, the book suggestions reflect this.
Although there is a section for Subject Specific books, don't worry too much about the specific subject domain, the underlying statistics will be the same.
You may find older or newer versions than those shown on here, please go ahead and use whichever is in stock, they don't tend to change drastically from one edition to the next.