APA (7th ed.) Citation

Douglas, A. (2011). Great Hike or, The Pride of the Khaki Troop. Project Gutenberg.

Chicago Style (17th ed.) Citation

Douglas, Alan. Great Hike or, The Pride of the Khaki Troop. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Douglas, Alan. Great Hike or, The Pride of the Khaki Troop. Project Gutenberg, 2011.

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