APA (7th ed.) Citation

Jackson, H. H. (2009). Hetty's Strange History. Project Gutenberg.

Chicago Style (17th ed.) Citation

Jackson, Helen Hunt. Hetty's Strange History. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Jackson, Helen Hunt. Hetty's Strange History. Project Gutenberg, 2009.

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