Blue (Adventures), Pokémon Wiki
Blue Oak, Heroes Wiki
Gary and Blue/Green Oak Distinguish and Development - Gary Oak - Comic Vine
Blue Oak, Heroes Wiki
Hills Oak, Northern Pin Oak, Knowledgebase
Trainer Profile: Gary Oak (EToP) by rbta123 on DeviantArt
Bur Oak, Knowledgebase
Trainer Green/Blue Oak: Review, Thoughts and First Impressions
Chico Area Recreation & Park District
Absolution Water - Thousand Oaks, California, United States, Professional Profile
Christopher Thomas
Pokemon: Gary vs. Blue – Who is the Better Pokemon Trainer?