Jordan, A., Gravey, V., & Adelle, C. (2021). Chapter 20 EU environmental policy at 50: Retrospect and prospect. Taylor & Francis.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJordan, Andrew, Viviane Gravey, और Camilla Adelle. Chapter 20 EU Environmental Policy at 50: Retrospect and Prospect. Taylor & Francis, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJordan, Andrew, et al. Chapter 20 EU Environmental Policy at 50: Retrospect and Prospect. Taylor & Francis, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.