Nygård, R. (2000). Productivity of woody vegetation in Savanna woodlands in Burkina Faso. Swedish University of Agricultural Sciences.
Chicagoスタイル(17版)引用形式Nygård, Robert. Productivity of Woody Vegetation in Savanna Woodlands in Burkina Faso. Umeå: Swedish University of Agricultural Sciences, 2000.
MLA(8版)引用形式Nygård, Robert. Productivity of Woody Vegetation in Savanna Woodlands in Burkina Faso. Swedish University of Agricultural Sciences, 2000.
警告: この引用は必ずしも正確ではありません.