APA (7th ed.) Citation

Riddle, B., & Stolzenberg, F. v. H. z. (2013). Happy House. Project Gutenberg.

Chicago Style (17th ed.) Citation

Riddle, Betsey, and Freifrau von Hutten zum Stolzenberg. Happy House. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Riddle, Betsey, and Freifrau von Hutten zum Stolzenberg. Happy House. Project Gutenberg, 2013.

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