APA (7th ed.) Citation

Montgomery, D. H. (2005). The Leading Facts of English History. Project Gutenberg.

Chicago Style (17th ed.) Citation

Montgomery, D. H. The Leading Facts of English History. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Montgomery, D. H. The Leading Facts of English History. Project Gutenberg, 2005.

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