Berrill, P. (2001). Everyone's guide to water colour painting. PBI publishing.
Citazione stile Chigago Style (17a edizione)Berrill, Philip. Everyone's Guide to Water Colour Painting. England: PBI publishing, 2001.
Citatione MLA (9a ed.)Berrill, Philip. Everyone's Guide to Water Colour Painting. PBI publishing, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.