APA (7th ed.) Citation

Cassels, W. R. (2009). Eidolon, or The Course of a Soul And Other Poems. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cassels, Walter Richard. Eidolon, or The Course of a Soul And Other Poems. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Cassels, Walter Richard. Eidolon, or The Course of a Soul And Other Poems. Project Gutenberg, 2009.

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