APA (7th ed.) Citation

Willson, H. (2010). The Use of a Box of Colours In a Practical Demonstration on Composition, Light and Shade, and Colour. Project Gutenberg.

Chicago Style (17th ed.) Citation

Willson, Harry. The Use of a Box of Colours In a Practical Demonstration on Composition, Light and Shade, and Colour. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Willson, Harry. The Use of a Box of Colours In a Practical Demonstration on Composition, Light and Shade, and Colour. Project Gutenberg, 2010.

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