Cita APA (7th ed.)

Parker, G., & Doak, J. (2012). Key Concepts in Planning. SAGE Publications Ltd.

Cita Chicago (17th ed.)

Parker, Gavin, i Joe Doak. Key Concepts in Planning. London: SAGE Publications Ltd, 2012.

Cita MLA (9th ed.)

Parker, Gavin, i Joe Doak. Key Concepts in Planning. SAGE Publications Ltd, 2012.