Παραπομπή σε μορφή APA (7η εκδ.)

Li, X., Li, X., & Yang, C. (2022). A comparison study of face stability between the entering and exiting a shallow-buried tunnel with a front slope. Frontiers Media S.A.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Li, Xinzhe, Xiulei Li, και Chao Yang. A Comparison Study of Face Stability Between the Entering and Exiting a Shallow-buried Tunnel with a Front Slope. Frontiers Media S.A, 2022.

Παραπομπή σε μορφή MLA (9th εκδ.)

Li, Xinzhe, et al. A Comparison Study of Face Stability Between the Entering and Exiting a Shallow-buried Tunnel with a Front Slope. Frontiers Media S.A, 2022.