APA (7th ed.) Citation

Mercer, J. E. (2006). Nature Mysticism. Project Gutenberg.

Chicago Style (17th ed.) Citation

Mercer, John Edward. Nature Mysticism. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Mercer, John Edward. Nature Mysticism. Project Gutenberg, 2006.

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