APA (7th ed.) Citation

Hope, L. L. (1990). The Bobbsey twins in the country. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hope, Laura Lee. The Bobbsey Twins in the Country. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Hope, Laura Lee. The Bobbsey Twins in the Country. Project Gutenberg, 1990.