Παραπομπή APA

Dobson, R. (2008). Life expectancy gap between better and less educated in US widens. BMJ Publishing Group Ltd.

Παραπομπή Chicago Style

Dobson, Roger. Life Expectancy Gap between Better and Less Educated in US Widens. BMJ Publishing Group Ltd, 2008.

Παραπομπή MLA

Dobson, Roger. Life Expectancy Gap between Better and Less Educated in US Widens. BMJ Publishing Group Ltd, 2008.

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