APA (7th ed.) Citation

Davies, R. (2009). Six Centuries of Painting. Project Gutenberg.

Chicago Style (17th ed.) Citation

Davies, Randall. Six Centuries of Painting. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Davies, Randall. Six Centuries of Painting. Project Gutenberg, 2009.

Warning: These citations may not always be 100% accurate.