APA (7th ed.) Citation

Oregon State University. Extension Service, Washington State University. Cooperative Extension, & University of Idaho. Cooperative Extension Service. Pacific Northwest weed control handbook. Extension Services of Oregon State University, Washington State University, and the University of Idaho.

Chicago Style (17th ed.) Citation

Oregon State University. Extension Service, Washington State University. Cooperative Extension, and University of Idaho. Cooperative Extension Service. Pacific Northwest Weed Control Handbook. Corvallis, Or.: Extension Services of Oregon State University, Washington State University, and the University of Idaho.

MLA (9th ed.) Citation

Oregon State University. Extension Service, et al. Pacific Northwest Weed Control Handbook. Extension Services of Oregon State University, Washington State University, and the University of Idaho.