Não informado. (1976). Phosphorus and sulfur and the related elements. Gordon and Breach.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Phosphorus and Sulfur and the Related Elements. New York: Gordon and Breach, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Phosphorus and Sulfur and the Related Elements. Gordon and Breach, 1976.
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