Kim, C. (1977). The history of fertilizer policies in Korea: An economic study. s.n.
Chicagoスタイル(17版)引用形式Kim, Choonsan. The History of Fertilizer Policies in Korea: An Economic Study. s.l: s.n, 1977.
MLA(9版)引用形式Kim, Choonsan. The History of Fertilizer Policies in Korea: An Economic Study. s.n, 1977.
警告: この引用は必ずしも正確ではありません.