Mendes, I., & Proença, I. (2010). Estimating the recreation value of ecosystems by using a travel cost method approach.
Chicago Style (17th ed.) CitationMendes, Isabel, and Isabel Proença. Estimating the Recreation Value of Ecosystems by Using a Travel Cost Method Approach. 2010.
MLA (8th ed.) CitationMendes, Isabel, and Isabel Proença. Estimating the Recreation Value of Ecosystems by Using a Travel Cost Method Approach. 2010.
Warning: These citations may not always be 100% accurate.