APA (7th ed.) Citation

Institution of Mining and Metallurgy (Great Britain), Geological Society of Zimbabwe, & Zimbabwe Institution of Engineers. (1991). African mining '91. Published for the Institution of Mining and Metallurgy by Elsevier Applied Science.

Chicago Style (17th ed.) Citation

Institution of Mining and Metallurgy (Great Britain), Geological Society of Zimbabwe, and Zimbabwe Institution of Engineers. African Mining '91. London ; New York: Published for the Institution of Mining and Metallurgy by Elsevier Applied Science, 1991.

MLA (9th ed.) Citation

Institution of Mining and Metallurgy (Great Britain), et al. African Mining '91. Published for the Institution of Mining and Metallurgy by Elsevier Applied Science, 1991.