MLA is first and foremost a set of guidelines for including parenthetical information to cite sources. It focuses on author information when giving credit to sources, so most citation involves using the names of the author or authors of any source. Reasons to use MLA style
Dependency period. This is the period after the death of a spouse and the survivor must have enough income to provide for the children until the youngest child reaches 18. This is an important consideration when purchasing life insurance. Talk over your needs with your agent or broker.
Definition: Age dependency ratio is the ratio of dependents--people younger than 15 or older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 working-age population.