APA (7 वां संस्करण) प्रशस्ति पत्र
Wills, B. A. (2006). Mineral processing technology: An introduction to the practical aspects of ore treatment and mineral recovery (7th ed.). Butterworth-Heinemann.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Wills, B. A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 7th ed. Oxford ; Boston: Butterworth-Heinemann, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Wills, B. A. Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 7th ed. Butterworth-Heinemann, 2006.
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