Duncan, A. E., de Vries, N., & Nyarko, K. B. (2018). Assessment of Heavy Metal Pollution in the Sediments of the River Pra and Its Tributaries. Water Air Soil Pollut.
استشهاد بنمط شيكاغوDuncan, Albert Ebo, Nanne de Vries, و Kwabena Biritwum Nyarko. "Assessment of Heavy Metal Pollution in the Sediments of the River Pra and Its Tributaries." Water Air Soil Pollut 2018.
MLA استشهادDuncan, Albert Ebo, Nanne de Vries, و Kwabena Biritwum Nyarko. "Assessment of Heavy Metal Pollution in the Sediments of the River Pra and Its Tributaries." Water Air Soil Pollut 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.