University of Nebraska (Lincoln campus). Agricultural Experiment Station & University of Nebraska--Lincoln. Agricultural Experiment Station. Annual report. Agricultural Experiment Station, University of Nebraska, Lincoln College of Agriculture.
芝加哥风格引文University of Nebraska (Lincoln campus). Agricultural Experiment Station 与 University of Nebraska--Lincoln. Agricultural Experiment Station. Annual Report. Lincoln: Agricultural Experiment Station, University of Nebraska, Lincoln College of Agriculture.
MLA引文University of Nebraska (Lincoln campus). Agricultural Experiment Station 与 University of Nebraska--Lincoln. Agricultural Experiment Station. Annual Report. Agricultural Experiment Station, University of Nebraska, Lincoln College of Agriculture.