Fox, J. E., Gulledge, J., Engelhaupt, E., Burow, M. E., & McLachlan, J. A. (2007). Pesticides reduce symbiotic efficiency of nitrogen-fixing rhizobia and host plants. National Academy of Sciences.
استشهاد بنمط شيكاغوFox, Jennifer E., Jay Gulledge, Erika Engelhaupt, Matthew E. Burow, و John A. McLachlan. Pesticides Reduce Symbiotic Efficiency of Nitrogen-fixing Rhizobia and Host Plants. National Academy of Sciences, 2007.
MLA استشهادFox, Jennifer E., et al. Pesticides Reduce Symbiotic Efficiency of Nitrogen-fixing Rhizobia and Host Plants. National Academy of Sciences, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.