APA (7th ed.) Citation

Holden, E. S. (2005). Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky. Project Gutenberg.

Chicago Style (17th ed.) Citation

Holden, Edward Singleton. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Holden, Edward Singleton. Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky. Project Gutenberg, 2005.

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