Pathfinder 1e Bestiary 1     Pathfinder (no source link)
Pathfinder 2e Bestiary 1     Pathfinder (no source link)
Paul Weber Encounters     D&D 5e (no source link)
Critter Cache: Prehistoric Beasts     D&D 4e original/official source
Hacklopedia Of Beasts Vol 4     Hackmaster (no source link)
Monster Tome     Blood And Treasure (no source link)