Han, U. C., Pak, K. I., Choe, C. S., Hong, K. U., & Kim, C. I. Stability Analysis of Pillar System during Room and Pillar Retreat Mining with Three Coal Seams. Wiley.
Chicago Style (17th ed.) CitationHan, Un Chol, Kum Il Pak, Chung Song Choe, Kun Ui Hong, and Chung Il Kim. Stability Analysis of Pillar System During Room and Pillar Retreat Mining with Three Coal Seams. Wiley.
MLA (9th ed.) CitationHan, Un Chol, et al. Stability Analysis of Pillar System During Room and Pillar Retreat Mining with Three Coal Seams. Wiley.
Warning: These citations may not always be 100% accurate.