OBERT, L. (1967). Rock mechanics and the design of structures in rock Leonar Obert, Wilbur I. Duvall. John Wiley & Sons.
Chicago Style (17th ed.) CitationOBERT, Leonard. Rock Mechanics and the Design of Structures in Rock Leonar Obert, Wilbur I. Duvall. John Wiley & Sons, 1967.
MLA (8th ed.) CitationOBERT, Leonard. Rock Mechanics and the Design of Structures in Rock Leonar Obert, Wilbur I. Duvall. John Wiley & Sons, 1967.
Warning: These citations may not always be 100% accurate.