DÜZGÜNEŞ, E. And DEMİREL, Ö. Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon. 2015. In Tourism Environment and Sustainability , ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA, Sofya, 536-558.

DÜZGÜNEŞ, E., & DEMİREL, Ö., (2015). Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon. Tourism Environment and Sustainability (pp.536-558), Sofya: ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA.

DÜZGÜNEŞ, ERTAN, And ÖNER DEMİREL. "Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon." In Tourism Environment and Sustainability , 536-558. Sofya: ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA, 2015

DÜZGÜNEŞ, ERTAN And DEMİREL, ÖNER. "Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon." Tourism Environment and Sustainability , ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA, 2015, pp.536-558.

DÜZGÜNEŞ, E. And DEMİREL, Ö. (2015) "Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon", Tourism Environment and Sustainability . Sofya: ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA.

@bookchapter{bookchapter, author ={ERTAN DÜZGÜNEŞ And author ={ÖNER DEMİREL}, chaptertitle={Determination of Environmental Awareness of the Urban People and Improving the Precautions to Increase this Awareness in Trabzon}, booktitle={ Tourism Environment and Sustainability}, publisher={ST. KLIMENT OHRIDSKI UNIVERSITY PRESS SOFIA}, city={Sofya},year={2015} }