APA (7th ed.) Citation

Duff, M. (2004). Catherine Booth - a Sketch. Project Gutenberg.

Chicago Style (17th ed.) Citation

Duff, Mildred. Catherine Booth - a Sketch. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Duff, Mildred. Catherine Booth - a Sketch. Project Gutenberg, 2004.

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