O'Hara, K. D. (2014). Earth resources and environmental impacts. Hoboken: Wiley.
Trích dẫn kiểu ChicagoO'Hara, Kieran D. Earth Resources and Environmental Impacts. Hoboken: Wiley, 2014.
MLA citiranjeO'Hara, Kieran D. Earth Resources and Environmental Impacts. Hoboken: Wiley, 2014.
Opozorilo: Ti citati niso vedno 100% točni.