Jill Rutherford. (2016). Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice) (Csm.). "Oxford University Press, USA".
Čikaški stil citiranja (17. izdanje)Jill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
MLA način citiranja (9. izdanje)Jill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
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