International Conference on Travel Survey Methods Herradura, Puntarenas, Costa Rica, Stopher, P. R., & Stecher, C. (2006). Travel survey methods: Quality and future directions. Elsevier.
Style de citation Chicago (17e éd.)International Conference on Travel Survey Methods Herradura, Puntarenas, Costa Rica, Peter R. Stopher, et Cheryl Stecher. Travel Survey Methods: Quality and Future Directions. Amsterdam ; Boston: Elsevier, 2006.
Style de citation MLA (8e éd.)International Conference on Travel Survey Methods Herradura, Puntarenas, Costa Rica, et al. Travel Survey Methods: Quality and Future Directions. Elsevier, 2006.
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