There are several variations of reprints available of the Model A Service Bulletins. Most of the major Model A parts suppliers sell at least one version. You can also find them on eBay. I just looked a eBay and found this one and it is the one I would recommend. It is full size, not like the reduced size one found in the yellow hard back version, published by Post.
Item #360356055208. It is not my auction and I do not know the seller.
Item #160604973906 is on a CD. It is not my auction and I do not know the seller.