APA (7th ed.) Citation

Blackie, G. (2013). Our Knowledge Box: Or, Old Secrets and New Discoveries. Project Gutenberg.

Chicago Style (17th ed.) Citation

Blackie, Geo. Our Knowledge Box: Or, Old Secrets and New Discoveries. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Blackie, Geo. Our Knowledge Box: Or, Old Secrets and New Discoveries. Project Gutenberg, 2013.

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