APA (7th ed.) Citation

Penrose, M. (2012). The Motor Girls in the Mountains; or, The Gypsy Girl's Secret. Project Gutenberg.

Chicago Style (17th ed.) Citation

Penrose, Margaret. The Motor Girls in the Mountains; or, The Gypsy Girl's Secret. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Penrose, Margaret. The Motor Girls in the Mountains; or, The Gypsy Girl's Secret. Project Gutenberg, 2012.

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