Lua APA (7ú heag.)
ebrary, Inc, & Zeman, F. (2012). Metropolitan sustainability: Understanding and improving the urban environment. Woodhead Pub..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Frank Zeman. Metropolitan Sustainability: Understanding and Improving the Urban Environment. Oxford: Woodhead Pub., 2012.
Lua MLA (9ú heag.)
ebrary, Inc, agus Frank Zeman. Metropolitan Sustainability: Understanding and Improving the Urban Environment. Woodhead Pub., 2012.
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