Contributions from the United States National Herbarium. Department of Botany, Smithsonian Institution.
芝加哥风格引文Contributions from the United States National Herbarium. Department of Botany, Smithsonian Institution.
MLA引文Contributions from the United States National Herbarium. Department of Botany, Smithsonian Institution.
警告：这些引文格式不一定是100％准确.