United States Department of Agriculture. Wood handbook , wood as an engineering material.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States Department of Agriculture. Wood Handbook , Wood as an Engineering Material.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States Department of Agriculture. Wood Handbook , Wood as an Engineering Material.
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