APA (7th ed.) Citation

Gibbons, H. D., & Hornby, L. G. (2012). Paris Vistas. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gibbons, Helen Davenport, and Lester George Hornby. Paris Vistas. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Gibbons, Helen Davenport, and Lester George Hornby. Paris Vistas. Project Gutenberg, 2012.

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