Sta. Clara, C. G. M. (1997). Portland cement raw mix burnability improvement using fine-grained quartz as a silica source.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSta. Clara, Claude Gregory M. Portland Cement Raw Mix Burnability Improvement Using Fine-grained Quartz as a Silica Source. 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSta. Clara, Claude Gregory M. Portland Cement Raw Mix Burnability Improvement Using Fine-grained Quartz as a Silica Source. 1997.
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