APA (7th ed.) Citation

Purcell, D. R. Gunnison's Bonanza.

Chicago Style (17th ed.) Citation

Purcell, Dick; Rognan. Gunnison's Bonanza.

MLA (9th ed.) Citation

Purcell, Dick; Rognan. Gunnison's Bonanza.

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