APA (7th ed.) Citation

Hall, E. C., Strong, B., & Nelson, G. P. (2010). The Land of Long Ago. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hall, Eliza Calvert, Beulah Strong, and G. Patrick Nelson. The Land of Long Ago. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Hall, Eliza Calvert, et al. The Land of Long Ago. Project Gutenberg, 2010.

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