Laverde Albarracín, C., Vallejo Torres, C., Bustillos Molina, I., Aguilera Vidal, H., & Carrillo Escobar, P. L. (2018). Effect at lumbar spine of workers when pushing rail cars loaded with fresh fruit bunches of oil palm.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Laverde Albarracín, Cristian, Christian Vallejo Torres, Irene Bustillos Molina, Henry Aguilera Vidal, و Patricio Leonidas Carrillo Escobar. Effect at Lumbar Spine of Workers When Pushing Rail Cars Loaded with Fresh Fruit Bunches of Oil Palm. 2018.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Laverde Albarracín, Cristian, et al. Effect at Lumbar Spine of Workers When Pushing Rail Cars Loaded with Fresh Fruit Bunches of Oil Palm. 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.