Valk, A. v. d. (1999). Elasticities? claro que si! an analysis of the domestic Costa Rican food demand.
Čikaški stil citiranjaValk, A.L. van der. Elasticities? Claro Que Si! an Analysis of the Domestic Costa Rican Food Demand. 1999.
MLA način citiranjaValk, A.L. van der. Elasticities? Claro Que Si! an Analysis of the Domestic Costa Rican Food Demand. 1999.
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