Dyfyniad APA

(2005). Harvard School of Public Health College Alcohol Study, 2001 Henry Wechsler. [electronic resource].

Dyfyniad Arddull Chicago

Harvard School of Public Health College Alcohol Study, 2001 Henry Wechsler. [electronic Resource]. 2005.

Dyfyniad MLA

Harvard School of Public Health College Alcohol Study, 2001 Henry Wechsler. [electronic Resource]. 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.