Jill Rutherford. (2016). Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice) (Csm.). "Oxford University Press, USA".
Chicago-čujuhus (17. p.)Jill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
MLA-čujuhus (9. p.)Jill Rutherford. Environmental Systems and Societies: For the Ib Diploma (Oxford Ib Skills and Practice). Csm. "Oxford University Press, USA", 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.