According to the Deadlands Classic Player's Guide, it's clear that you can (and must) select a concentration when selecting an aptitude that has them. But, it also says:
Your character can learn additional concentrations of a skill for a flat 3 bounty points.
You only have aptitude points to spend at character creation, not bounty points (as far as I can tell), so are you not able to get more than one concentration for an aptitude at character creation? How does that work for things like language or academia? Is there an official ruling on this or at least a good house rule for it?