Hi, i'm building up a campaign but i have some issue facing enemy.

I have some manuals where i can get some enemy/moster to face but i see there are many other scattered around many manuals.

there is a database or simile where i can find where a particular enemy is described (name of the book) so i can buy it?

www.40krpgtools.com/bestiary

There should be a sticky for sites like this, these questions get asked all the time.

Really thanks!