ÜSTÜN, Ü. D. Et Al. 2013. A comparison of environmental values the effect of outdoor recreation. International Journal of Sport Studies .

ÜSTÜN, Ü. D., GÜMÜŞGÜL, O., IŞIK, U., & DEMİREL, M., (2013). A comparison of environmental values the effect of outdoor recreation. International Journal of Sport Studies .

ÜSTÜN, ÜMİT Et Al. "A comparison of environmental values the effect of outdoor recreation," International Journal of Sport Studies , 2013

ÜSTÜN, ÜMİT D. Et Al. "A comparison of environmental values the effect of outdoor recreation." International Journal of Sport Studies , 2013

ÜSTÜN, Ü. D. Et Al. (2013) . "A comparison of environmental values the effect of outdoor recreation." International Journal of Sport Studies .

@article{article, author={ÜMİT DOĞAN ÜSTÜN Et Al. }, title={A comparison of environmental values the effect of outdoor recreation}, journal={International Journal of Sport Studies}, year=2013}