APA (7th ed.) Citation

Heyse, P., & L. C. S. (2010). Barbarossa and Other Tales. Project Gutenberg.

Chicago Style (17th ed.) Citation

Heyse, Paul, and L. C. S. Barbarossa and Other Tales. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Heyse, Paul, and L. C. S. Barbarossa and Other Tales. Project Gutenberg, 2010.

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