APA (7 वां संस्करण) प्रशस्ति पत्र

Birch, D., & Worley, P. (2014). Provocations: Philosophy for secondary school. Crown House Publishing Limited.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Birch, David, और Peter Worley. Provocations: Philosophy for Secondary School. Bancyfelin, Camarthen, Wales, [England]: Crown House Publishing Limited, 2014.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Birch, David, और Peter Worley. Provocations: Philosophy for Secondary School. Crown House Publishing Limited, 2014.