Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.