APA (7th ed.) Citation

Elger, T. G. (2006). The Moon A Full Description and Map of its Principal Physical Features. Project Gutenberg.

Chicago Style (17th ed.) Citation

Elger, Thomas Gwyn. The Moon A Full Description and Map of Its Principal Physical Features. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Elger, Thomas Gwyn. The Moon A Full Description and Map of Its Principal Physical Features. Project Gutenberg, 2006.

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