I just did a quick Google search using a couple different search terms, and unfortunately, nothing like what your asking about came up. There are numerous reference books on world coins, including some country-specific. Nothing, however, on grading. I would venture to say that, as far as the above mentioned books, they are both great references for grading
US coins.
US coinage is standard, and the grading guidelines are geared toward those. The
ANA Standards are the accepted means of grading coins in the US, and these were written by (for lack of a better term) a governing body in American Numismatics. When you talk about foreign coins, the standards will vary widely from country to country. The Euro only includes a small percentage of the countries in the world. Everybody else does what they think best. So one single reference that provides grading standards for all foreign coins would be quite an extensive set of books. Even finding grading guidelines for an individual country's coins would be quite a challenge.