Lua APA (7ú heag.)
Treweek, J. (1999). Ecological impact assessment. Blackwell Science.
Lua i Stíl Chicago (17ú heag.)
Treweek, Jo. Ecological Impact Assessment. Oxford ; Malden, MA: Blackwell Science, 1999.
Lua MLA (9ú heag.)
Treweek, Jo. Ecological Impact Assessment. Blackwell Science, 1999.
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