Listing for Frog:
(name, CR, source)
Frog, Giant Tree 2 Skull and Bones
Frog, Monstrous - Giant 2 Ancient Kingdoms Mesopotamia, Tome of Horrors 1, 1E Monster Manual 1, Tomb of Abysthor, Monstrous Compendium Volume 2, Monstrous Manual
Frog, Monstrous - Giant Dire 4 Ancient Kingdoms Mesopotamia, Tome of Horrors 1, Tomb of Abysthor
Frog, Monstrous - Killer 1 Ancient Kingdoms Mesopotamia, Tome of Horrors 1, 1E Monster Manual 1, Tomb of Abysthor, Monstrous Compendium Volume 2, Monstrous Manual, Dungeon#126
Frog, Monstrous - Abyssal Dire 5 Ancient Kingdoms Mesopotamia, Tome of Horrors 1, Tomb of Abysthor
Frog, Monstrous - Poisonous 1 Ancient Kingdoms Mesopotamia, Tome of Horrors 1, 1E Monster Manual 1, Tomb of Abysthor, Monstrous Compendium Volume 2, Champions of Mystara, Monstrous Manual, Creature Catalogue (AC9)