APA (7th ed.) Citation

Conwell, R. H. (2011). Increasing Personal Efficiency. Project Gutenberg.

Chicago Style (17th ed.) Citation

Conwell, Russell H. Increasing Personal Efficiency. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Conwell, Russell H. Increasing Personal Efficiency. Project Gutenberg, 2011.

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