Koopowitz, H., & Kaye, H. Plant extinction: A global crisis (2a ed.).
芝加哥风格引文Koopowitz, Harold, 与 Hilary Kaye. Plant Extinction: A Global Crisis. 2a ed.
MLA引文Koopowitz, Harold, 与 Hilary Kaye. Plant Extinction: A Global Crisis. 2a ed.
警告：这些引文格式不一定是100％准确.