Gilbert, J. (1895). Agricultural investigation at Rothamsted, England during a period of fifty years: научное издание.
Chicagoスタイル(17版)引用形式Gilbert, J.H. Agricultural Investigation at Rothamsted, England During a Period of Fifty Years: научное издание. 1895.
MLA(9版)引用形式Gilbert, J.H. Agricultural Investigation at Rothamsted, England During a Period of Fifty Years: научное издание. 1895.
警告: この引用は必ずしも正確ではありません.