Liu, Y., Cao, P., He, L., & Lin, Q. Failure Behaviour of Sandstone with a Preexisting Joint under Stepped Excavation. Wiley.
Chicago Style (17th ed.) CitationLiu, Yinzhu, Ping Cao, Liwen He, and Qibin Lin. Failure Behaviour of Sandstone with a Preexisting Joint Under Stepped Excavation. Wiley.
MLA (9th ed.) CitationLiu, Yinzhu, et al. Failure Behaviour of Sandstone with a Preexisting Joint Under Stepped Excavation. Wiley.
Warning: These citations may not always be 100% accurate.