APA (7th ed.) Citation

Bird, I. (2007). Adventures in the rocky mountains. Penguin Books.

Chicago Style (17th ed.) Citation

Bird, Isabella. Adventures in the Rocky Mountains. London: Penguin Books, 2007.

MLA (9th ed.) Citation

Bird, Isabella. Adventures in the Rocky Mountains. Penguin Books, 2007.

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