Não informado. (1929). Butler University botanical studies. Butler University, Department of Botany.
Chicagoスタイル(17版)引用形式Não informado. Butler University Botanical Studies. Indianapolis, Ind: Butler University, Department of Botany, 1929.
MLA(8版)引用形式Não informado. Butler University Botanical Studies. Butler University, Department of Botany, 1929.
警告: この引用は必ずしも正確ではありません.