Cita APA (7a ed.)

Bowlby, J. (1980). Attachment and loss. Attachment and loss.

Cita Chicago Style (17a ed.)

Bowlby, John. "Attachment and Loss." Attachment and Loss 1980.

Cita MLA (9a ed.)

Bowlby, John. "Attachment and Loss." Attachment and Loss, 1980.