Cita APA (7a ed.)

Parker, G., & Doak, J. (2012). Key concepts in planning. SAGE Publications.

Cita Chicago Style (17a ed.)

Parker, Gavin, y Joe Doak. Key Concepts in Planning. London, [England] ; Thousand Oaks, California: SAGE Publications, 2012.

Cita MLA (9a ed.)

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