Frey, S. M., & Urban, J. E. (1986). Stimulation of Nodulation in the Clover-Rhizobium trifolii 0403 System by Penicillin and Mecillinam.
استشهاد بنمط شيكاغوFrey, Steven M., و James E. Urban. Stimulation of Nodulation in the Clover-Rhizobium Trifolii 0403 System By Penicillin and Mecillinam. 1986.
MLA استشهادFrey, Steven M., و James E. Urban. Stimulation of Nodulation in the Clover-Rhizobium Trifolii 0403 System By Penicillin and Mecillinam. 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.