Não informado. (1976). Systematic Botany. American Society of Plant Taxonomists.
Chicagoスタイル(17版)引用形式Não informado. Systematic Botany. Kent, Ohio: American Society of Plant Taxonomists, 1976.
MLA(8版)引用形式Não informado. Systematic Botany. American Society of Plant Taxonomists, 1976.
警告: この引用は必ずしも正確ではありません.