APA (7th ed.) Citation

Optic, O. (2008). Seek and Find or The Adventures of a Smart Boy. Project Gutenberg.

Chicago Style (17th ed.) Citation

Optic, Oliver. Seek and Find or The Adventures of a Smart Boy. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Optic, Oliver. Seek and Find or The Adventures of a Smart Boy. Project Gutenberg, 2008.

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