CHIPMON Hamstery believes that sufficient information are provided in existent websites (as below) thus unnecessary to include in here.

Pet Website - Winter Whites, Campbells, Roborovskis and Syrians.

River Road Hamstery - Syrians.

Linda Price's Hamstery - Winter Whites, Campbells, Roborovskis and Syrians.

The British Hamster Association - Detailed guide on how Syrians, Winter Whites and Campbells, are being judged.