APA:
Bonaventura Forleo, Maria, Gagliardi, Nicola, Romagnoli, Luca (2015). Determinants of willingness to pay for an urban green area.
International journal of management, knowledge and learning, letnik 4, številka 1, str. 7-25, 127.
URN:NBN:SI:DOC-M241MT4W from http://www.dlib.si