APA引文

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

Citación estilo Chicago

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

MLA引文

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

警告：这些引文格式不一定是100％准确.