Grayum, M. H. (2027). Paul C. Standley: A century after his botanical work in Costa Rica.
シカゴスタイル引用形Grayum, Michael H. Paul C. Standley: A Century After His Botanical Work in Costa Rica. 2027.
MLA引用形式Grayum, Michael H. Paul C. Standley: A Century After His Botanical Work in Costa Rica. 2027.
警告: この引用は必ずしも正確ではありません.