Jill Rutherford. (2016). Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice) (Csm.). "Oxford University Press, USA".
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
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