APA (7th ed.) Citation

Nightingale, F. (2005). Notes on Nursing What It Is, and What It Is Not. Project Gutenberg.

Chicago Style (17th ed.) Citation

Nightingale, Florence. Notes on Nursing What It Is, and What It Is Not. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Nightingale, Florence. Notes on Nursing What It Is, and What It Is Not. Project Gutenberg, 2005.

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