APA (7th ed.) Citation

(2012). A Classified Catalogue of Works in General Literature Published by Longmans, Green, and Co. Project Gutenberg.

Chicago Style (17th ed.) Citation

A Classified Catalogue of Works in General Literature Published by Longmans, Green, and Co. Project Gutenberg, 2012.

MLA (9th ed.) Citation

A Classified Catalogue of Works in General Literature Published by Longmans, Green, and Co. Project Gutenberg, 2012.

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