Não informado. (1971). International journal of sulfur chemistry. Intra-Science Research Foundation in cooperation with Gordon and Breach.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. International Journal of Sulfur Chemistry. Santa Monica, Calif: Intra-Science Research Foundation in cooperation with Gordon and Breach, 1971.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. International Journal of Sulfur Chemistry. Intra-Science Research Foundation in cooperation with Gordon and Breach, 1971.
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