APA (7th ed.) Citation

Kirk, A. (2016). Polar chart. SAGE Publications, Ltd..

Chicago Style (17th ed.) Citation

Kirk, Andy. Polar Chart. London: SAGE Publications, Ltd., 2016.

MLA (9th ed.) Citation

Kirk, Andy. Polar Chart. SAGE Publications, Ltd., 2016.

Warning: These citations may not always be 100% accurate.