Koerner, R. M., & Daniel, D. E. (1997). Final covers for solid waste landfills and abandoned dumps. ASCE Press ; Thomas Telford.
Lua i Stíl Chicago (17ú heag.)Koerner, Robert M., agus David E. Daniel. Final Covers for Solid Waste Landfills and Abandoned Dumps. Virginia London: ASCE Press ; Thomas Telford, 1997.
Lua MLA (8ú heag.)Koerner, Robert M., agus David E. Daniel. Final Covers for Solid Waste Landfills and Abandoned Dumps. ASCE Press ; Thomas Telford, 1997.
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