(2011). Gimp 2.6 cookbook over 50 recipes to produce amazing graphics with the GIMP / Juan Manuel Ferreyra. [electronic resource].
Chicago-viite (17. p.)Gimp 2.6 Cookbook over 50 Recipes to Produce Amazing Graphics with the GIMP / Juan Manuel Ferreyra. [electronic Resource]. 2011.
MLA-viite (9. p.)Gimp 2.6 Cookbook over 50 Recipes to Produce Amazing Graphics with the GIMP / Juan Manuel Ferreyra. [electronic Resource]. 2011.
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