Báez, A., & Valverde, F. (1999). Keys to the success of ecotourism projects with community participation. The Costa Rican case of the sky walk - sky trek.
Citación estilo ChicagoBáez, Ana, y Fernando Valverde. Keys to the Success of Ecotourism Projects With Community Participation. The Costa Rican Case of the Sky Walk - Sky Trek. 1999.
MLA引文Báez, Ana, y Fernando Valverde. Keys to the Success of Ecotourism Projects With Community Participation. The Costa Rican Case of the Sky Walk - Sky Trek. 1999.
警告：這些引文格式不一定是100％准確.