APA

Udwin O., Boyle S., Yule W., Bolton D. & O'Ryan D. (20010531). Risk factors for long-term psychological effects of a disaster experienced in adolescence: predictors of post traumatic stress disorder. : Journal of child psychology and psychiatry, and allied disciplines.

Chicago

Udwin O, Boyle S, Yule W, Bolton D and O'Ryan D. 20010531. Risk factors for long-term psychological effects of a disaster experienced in adolescence: predictors of post traumatic stress disorder. : Journal of child psychology and psychiatry, and allied disciplines.

Harvard

Udwin O., Boyle S., Yule W., Bolton D. and O'Ryan D. (20010531). Risk factors for long-term psychological effects of a disaster experienced in adolescence: predictors of post traumatic stress disorder. : Journal of child psychology and psychiatry, and allied disciplines.

MLA

Udwin O, Boyle S, Yule W, Bolton D and O'Ryan D. Risk factors for long-term psychological effects of a disaster experienced in adolescence: predictors of post traumatic stress disorder. : Journal of child psychology and psychiatry, and allied disciplines. 20010531.