OSE Encounter Activity Tables     Any (no source link)
Monsters Of The Underworld     D&D 5e original/official source
Monster Manual     D&D 4e (no source link)
Dungeons And Dragons Essentials: Monster Vault     D&D 4e (no source link)
D&D 2e Monstrous Manual     D&D 2e (no source link)
Monstrous Manual: Dragonlance     D&D 2e (no source link)
Scruffy Grognard's Monstrous Manual     D&D 2e (no source link)
AD&D Monster Manual     AD&D 1e (no source link)
New Big Dragon Creature Compendium     D&D B/X original/official source
Bestiary Of Cryptofauna     Old School Essentials (no source link)