Beer, J. (1987). Advantages, disadvantages and desirable characteristics of shade trees for coffee, cacao and tea.
シカゴスタイル引用形Beer, John. Advantages, Disadvantages and Desirable Characteristics of Shade Trees for Coffee, Cacao and Tea. 1987.
MLA引用形式Beer, John. Advantages, Disadvantages and Desirable Characteristics of Shade Trees for Coffee, Cacao and Tea. 1987.
警告: この引用は必ずしも正確ではありません.