A sample on your Kindle will have EBSP in its filename, for example:
American Lion Andrew Jackson in-asin_B001FA0JSM-type_EBSP-v_0.azw
You can search for this when connected to a computer via USB. The rest of the filename is enough to find it in the Kindle Store, in particular you can search on the ASIN (in the above case B001FA0JSM).
If you ever decide to add collections, see Kindle Collection Manager for Windows