The bicarb in sealed containers is good, should lessen the smell at least.  For larger books, place a baking rack in a box and sprinkle baking soda around it. Place the book on the baking rack so it is elevated and no baking soda is touching it. Close up the box and allow it to sit for several days. Check on it regularly and refresh the baking soda once a week until the odor is gone.

I'd also use an odour neutraliser, made from equal parts bicarb and vinegar in a spray bottle and spray away.  Given the items are paper based though you would want to do this lightly.  

Nilodor is also good (tiny bottle from the supermarket that is also pricey) but don't overdo this one, it can be pretty nauseating if you use too much!