Amanita bulbosa var. citrina - image with Amanita phalloides for comparison, with minimal descriptive text (Italian). www.dipbot.unict.it/sistematica/Amanita.html
Amanita bulbosa var. citrina - image and poisoning information (German). [Giftinformationszentrale Bonn - Gelblicher Knollenblätterpilz (Amanita citrina).] www.meb.uni-bonn.de/giftzentrale/gelblicherknollenblaetterpilz.html
Amanita bulbosa vars. - Brief description of var. bulbosa and var. citrina with color image of var. bulbosa (Welsh mat'l.) www.fishing-in-wales.co.uk/wildlife/fungi/acitrina.htm
