American National Standards Institute. (1992). Filler Metal Procurement Guidelines. American: American Welding Society.
शिकागो स्टाइल उद्धरणAmerican National Standards Institute. Filler Metal Procurement Guidelines. American: American Welding Society, 1992.
एमएलए उद्धरणAmerican National Standards Institute. Filler Metal Procurement Guidelines. American: American Welding Society, 1992.
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