APA (7th ed.) Citation

Pacific Northwest Forest and Range Experiment Station (Portland, Or.), Canada/United States Spruce Budworms Program, & Campbell, R. W. (1981). Bird exclosures for branches and whole trees. The Station.

Chicago Style (17th ed.) Citation

Pacific Northwest Forest and Range Experiment Station (Portland, Or.), Canada/United States Spruce Budworms Program, and Robert W. Campbell. Bird Exclosures for Branches and Whole Trees. Portland, Or.: The Station, 1981.

MLA (9th ed.) Citation

Pacific Northwest Forest and Range Experiment Station (Portland, Or.), et al. Bird Exclosures for Branches and Whole Trees. The Station, 1981.