Xi, X., Li, C., & Zhang, F. (2008). Tobacco plants can use nitrogen taken up before mechanical wounding to synthesize nicotine afterwards. Landes Bioscience.
استشهاد بنمط شيكاغوXi, Xiangyin, Chunjian Li, و Fusuo Zhang. Tobacco Plants Can Use Nitrogen Taken Up Before Mechanical Wounding to Synthesize Nicotine Afterwards. Landes Bioscience, 2008.
MLA استشهادXi, Xiangyin, Chunjian Li, و Fusuo Zhang. Tobacco Plants Can Use Nitrogen Taken Up Before Mechanical Wounding to Synthesize Nicotine Afterwards. Landes Bioscience, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.