APA(7版)引用形式
Krug, C., & Poerck, R. A. d. (1968). World Coffee Survey. Food and Agriculture Organization of the United Nations.
Chicagoスタイル(17版)引用形式
Krug, C.A, , R. A. de Poerck. World Coffee Survey. Rome: Food and Agriculture Organization of the United Nations, 1968.
MLA(9版)引用形式
Krug, C.A, , R. A. de Poerck. World Coffee Survey. Food and Agriculture Organization of the United Nations, 1968.
警告: この引用は必ずしも正確ではありません.