APA (7th ed.) Citation

Henty, G. A. In the Heart of the Rockies: A Story of Adventure in Colorado.

Chicago Style (17th ed.) Citation

Henty, G. A. In the Heart of the Rockies: A Story of Adventure in Colorado.

MLA (9th ed.) Citation

Henty, G. A. In the Heart of the Rockies: A Story of Adventure in Colorado.

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