Alphabetic Catagory starts on odd pages

I have an 80 page address book of all people our company does business with.
Each page of my address book has 8 companies listed on it in alphabetic
order. I have page numbers at the bottom of my pages 1 of 80, 2 of 80, etc.
I print my address book out 2 sided for all people in the office. While the
A entries of course start on page 1, I'd like the B entries to start on an
odd page as well so all new letters start on a new right hand page.

Can someone give me help as how to achieve this instead of printing it out
one sided and adding blank sheets of paper in so that when I do a 2 sided
print I get the letters showing up on the correct side of the paper. I can
print to the copier and it would be easier and less waste of time to set it
up correctly in the first place.

Thanks in Advance

Kat