Não informado. (1959). Illinois research. University of Illinois at Urbana-Champaign, Agricultural Experiment Station.
Chicagoスタイル(17版)引用形式Não informado. Illinois Research. Urbana, Ill: University of Illinois at Urbana-Champaign, Agricultural Experiment Station, 1959.
MLA(8版)引用形式Não informado. Illinois Research. University of Illinois at Urbana-Champaign, Agricultural Experiment Station, 1959.
警告: この引用は必ずしも正確ではありません.