- Oregon State University. Agricultural Experiment Station4
- Southern Oregon Agricultural Experiment Station4
- Vanbuskirk, Philip3
- Westigard, Peter H.3
- Gonzalves, Pete2
- Hilton, Richard J.2
- Hilton, Richard (Richard J.)1
- Hilton, Richard, J.1
- Vanbuskirk, Philip, D.1
- Westigard, Peter, H.1