APA (7th ed.) Citation

Rocky Mountain Research Station (Fort Collins, Colo.), & Abella, S. R. (2011). Using a terrestrial ecosystem survey to estimate the historical density of ponderosa pine trees. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station.

Chicago Style (17th ed.) Citation

Rocky Mountain Research Station (Fort Collins, Colo.), and Scott R. Abella. Using a Terrestrial Ecosystem Survey to Estimate the Historical Density of Ponderosa Pine Trees. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2011.

MLA (9th ed.) Citation

Rocky Mountain Research Station (Fort Collins, Colo.), and Scott R. Abella. Using a Terrestrial Ecosystem Survey to Estimate the Historical Density of Ponderosa Pine Trees. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2011.

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