Anwadike, B. C. (2015). Evaluation of the Heavy Metal Contents of Soil and Crops on a Field Treated with Ogun Rock Phosphate and Cowdung Fertilizers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Anwadike, Benjamin Chukwumah. Evaluation of the Heavy Metal Contents of Soil and Crops on a Field Treated with Ogun Rock Phosphate and Cowdung Fertilizers. 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Anwadike, Benjamin Chukwumah. Evaluation of the Heavy Metal Contents of Soil and Crops on a Field Treated with Ogun Rock Phosphate and Cowdung Fertilizers. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.