Valk, A. v. d. (1999). Elasticities? claro que si! an analysis of the domestic Costa Rican food demand.
Chicago Style aipamenaValk, A.L. van der. Elasticities? Claro Que Si! an Analysis of the Domestic Costa Rican Food Demand. 1999.
MLA aipamenaValk, A.L. van der. Elasticities? Claro Que Si! an Analysis of the Domestic Costa Rican Food Demand. 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.