APA (7th ed.) Citation

Hoek, E., & Bray, J. (1977). Rock slope engineering (Rev. 2. ed.). Inst. of Mining and Metallurgy.

Chicago Style (17th ed.) Citation

Hoek, Evert, and John Bray. Rock Slope Engineering. Rev. 2. ed. London: Inst. of Mining and Metallurgy, 1977.

MLA (9th ed.) Citation

Hoek, Evert, and John Bray. Rock Slope Engineering. Rev. 2. ed. Inst. of Mining and Metallurgy, 1977.