Ryan, S. (2020). Theorizing Outdoor Recreation and Ecology. 1st ed. 2015. Palgrave Macmillan UK.
Čikaški stil citiranjaRyan, Sean. Theorizing Outdoor Recreation and Ecology. 1st Ed. 2015. Palgrave Macmillan UK, 2020.
MLA način citiranjaRyan, Sean. Theorizing Outdoor Recreation and Ecology. 1st Ed. 2015. Palgrave Macmillan UK, 2020.
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