Não informado. (1917). Journal of the Department of Agriculture. University of Puerto Rico.
Chicagoスタイル(17版)引用形式Não informado. Journal of the Department of Agriculture. Rio Piedras, Porto Rico: University of Puerto Rico, 1917.
MLA(8版)引用形式Não informado. Journal of the Department of Agriculture. University of Puerto Rico, 1917.
警告: この引用は必ずしも正確ではありません.