Cita APA (7a ed.)

Troop, N. A., & Treasure, J. (1997). Psychosocial factors in the onset of eating disorders: Responses to life-events and difficulties. [s.n.].

Cita Chicago Style (17a ed.)

Troop, Nicholas A., y Janet Treasure. Psychosocial Factors in the Onset of Eating Disorders: Responses to Life-events and Difficulties. [S.l.]: [s.n.], 1997.

Cita MLA (9a ed.)

Troop, Nicholas A., y Janet Treasure. Psychosocial Factors in the Onset of Eating Disorders: Responses to Life-events and Difficulties. [s.n.], 1997.