=655 $aAudiobooks.
=655 $aElectronic books.
=655 $aMP3 (Audio coding format)
=655 4$aDownloadable audiobooks.
=655 7$aAudiobooks collection$vNonfiction.$2local
=655 7$aAudiobooks.$2lcsh
=655 7$aDownloadable audio books.$2local
=655 7$aDownloadable audiobook.$2local
=655 7$aDownloadable audiobooks.$2local
=655 7$aElectronic books.$2local
Standards! We haz dem!