APA

State University. Agricultural Experiment Station, O., States. Agency for International Development, U., & Maize and Wheat Improvement Center, I. (1982). Results of the Ninth International Winter X Spring Wheat Screening Nursery (1981-1982). : Corvallis, Or. : Agricultural Experiment Station, Oregon State University, The Agency for International Development, U.S. Dept. of State, The International Maize and Wheat Improvement Center.