APA način citiranja

Rosero Bixby, L. (2008). The exceptionally high life expectancy of Costa Rican nonagenarians.

Čikaški stil citiranja

Rosero Bixby, Luis. The Exceptionally High Life Expectancy of Costa Rican Nonagenarians. 2008.

MLA način citiranja

Rosero Bixby, Luis. The Exceptionally High Life Expectancy of Costa Rican Nonagenarians. 2008.

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