Não informado. (2001). Amaryllis yearbook. American Plant Life Society.
Chicagoスタイル(17版)引用形式Não informado. Amaryllis Yearbook. La Jolla, Calif: American Plant Life Society, 2001.
MLA(8版)引用形式Não informado. Amaryllis Yearbook. American Plant Life Society, 2001.
警告: この引用は必ずしも正確ではありません.