APA (7th ed.) Citation

Webb, W. M., & Sillem, C. (2013). The British Woodlice Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British Islands. Project Gutenberg.

Chicago Style (17th ed.) Citation

Webb, Wilfred Mark, and Charles Sillem. The British Woodlice Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British Islands. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Webb, Wilfred Mark, and Charles Sillem. The British Woodlice Being a Monograph of the Terrestrial Isopod Crustacea Occurring in the British Islands. Project Gutenberg, 2013.

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