Lua APA (7ú heag.)
Geertman, S., & Stillwell, J. (2009). Planning Support Systems Best Practice and New Methods. Springer Netherlands. https://doi.org/10.1007/978-1-4020-8952-7
Lua i Stíl Chicago (17ú heag.)
Geertman, Stan, agus John Stillwell. Planning Support Systems Best Practice and New Methods. Dordrecht: Springer Netherlands, 2009. https://doi.org/10.1007/978-1-4020-8952-7.
Lua MLA (9ú heag.)
Geertman, Stan, agus John Stillwell. Planning Support Systems Best Practice and New Methods. Springer Netherlands, 2009. https://doi.org/10.1007/978-1-4020-8952-7.
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