APA (7th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), & Hessl, A. (2004). Ecophysiological parameters for Pacific Northwest trees. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station.

Chicago Style (17th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), and Amy Hessl. Ecophysiological Parameters for Pacific Northwest Trees. Portland, OR: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2004.

MLA (8th ed.) Citation

Pacific Northwest Research Station (Portland, Or.), and Amy Hessl. Ecophysiological Parameters for Pacific Northwest Trees. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2004.