APA (7th ed.) Citation

Lang, L., Little, J., Valcic, B., & Johnsen, J. (2009). Beaver Creek National Wild River: Economic valuation of recreation.

Chicago Style (17th ed.) Citation

Lang, Lumir, Joseph Little, Branka Valcic, and James Johnsen. Beaver Creek National Wild River: Economic Valuation of Recreation. 2009.

MLA (9th ed.) Citation

Lang, Lumir, et al. Beaver Creek National Wild River: Economic Valuation of Recreation. 2009.