Wang, J., & Wang, Z. (2019). Systematic principles of surrounding rock control in longwall mining within thick coal seams. Elsevier.
शिकागो स्टाइल उद्धरणWang, Jiachen, और Zhaohui Wang. Systematic Principles of Surrounding Rock Control in Longwall Mining Within Thick Coal Seams. Elsevier, 2019.
एमएलए उद्धरणWang, Jiachen, और Zhaohui Wang. Systematic Principles of Surrounding Rock Control in Longwall Mining Within Thick Coal Seams. Elsevier, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.