Cita APA (7a ed.)

Bowlby, J. (1982). Attachment and loss: Retrospect and prospect. American journal of orthopsychiatry, 52(4), 664-678.

Cita Chicago Style (17a ed.)

Bowlby, John. "Attachment and Loss: Retrospect and Prospect." American Journal of Orthopsychiatry 52, no. 4 (1982): 664-678.

Cita MLA (8a ed.)

Bowlby, John. "Attachment and Loss: Retrospect and Prospect." American Journal of Orthopsychiatry, vol. 52, no. 4, 1982, pp. 664-678.