APA

Boersma, L., State University. Agricultural Experiment Station, O., Klock, G., Jackson, 1., Mack, 1., Vittum, M., Calhoun, 1., Watts, D., Castle, E., & Miller, S. (1965). Progress of irrigation research on Willamette Valley soils. : Corvallis, Or. : Agricultural Experiment Station, Oregon State University.