Duisberg, P. (1978). Memorandum: Recommendations inf the field of soils.
シカゴスタイル引用形Duisberg, P.C. Memorandum: Recommendations Inf the Field of Soils. 1978.
MLA引用形式Duisberg, P.C. Memorandum: Recommendations Inf the Field of Soils. 1978.
警告: この引用は必ずしも正確ではありません.