Bechtel,Helmut. (1981). The manual of cultivated orchid species. Bath press.
シカゴスタイル引用形Bechtel,Helmut. The Manual of Cultivated Orchid Species. Great britain: Bath press, 1981.
MLA引用形式Bechtel,Helmut. The Manual of Cultivated Orchid Species. Bath press, 1981.
警告: この引用は必ずしも正確ではありません.