Não informado. (1973). International journal of sulfur chemistry. Intra-Science Research Foundation in cooperation with Gordon and Breach.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Sulfur Chemistry. Santa Monica, Calif: Intra-Science Research Foundation in cooperation with Gordon and Breach, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Sulfur Chemistry. Intra-Science Research Foundation in cooperation with Gordon and Breach, 1973.
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