Não informado. Planning: A broadsheet issued by PEP. Political and Economic Planning.
Čikaški stil citiranja (17. izdanje)Não informado. Planning: A Broadsheet Issued by PEP. London: Political and Economic Planning.
MLA način citiranja (8. izdanje)Não informado. Planning: A Broadsheet Issued by PEP. Political and Economic Planning.
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