Gentry, H. S. (1942). Rio Mayo plants: A study of the flora and vegetation of the valley of Rio Mayo. Carnegie Institution of Washington Publication.
芝加哥风格引文Gentry, Howard Scott. Rio Mayo Plants: A Study of the Flora and Vegetation of the Valley of Rio Mayo. Washington D.C: Carnegie Institution of Washington Publication, 1942.
MLA引文Gentry, Howard Scott. Rio Mayo Plants: A Study of the Flora and Vegetation of the Valley of Rio Mayo. Carnegie Institution of Washington Publication, 1942.
警告：这些引文格式不一定是100％准确.