You can also use the context tab in BW9. One of the three panes there is labeled "Book context"; that gives you the number of verses and, just after that, the number of words. So as I look at Romans, it gives me automatically the figure of 433 verses and 1050 words. You can also do a right click and click on "Export list to Word list manager." That will immediately build the list of the words of that book in the manager, which will also specify the number of words imported, i.e. (for Romans), 1050 in 7111 occurrences.
That's even easier than the other solution and uses functions in the way for which they were designed.
Blessings,
Donald Cobb
Aix-en-Provence, France