References - Green Petroleum - Wiley Online Library
Skadis Vallejo
All Hobby Essentials and Paintracks – Brutal Cities
FormX Webshop
Grey Surface Primer (200 ml / 6.76 fl oz), Acrylicos Vallejo
Glidden 8 oz. PPG1033-7 Charcoal Smoke Satin Interior Paint Sample
Sky & Ice Paint Set: Blue, Accessories
Vallejo Surface Primer Paints
Vallejo Paint - Surface Primer
WTS Full Set Gundam Building Accessories , Hobbies & Toys, Toys
Vallejo Primers - White