Cita APA (7a ed.)

Bowlby, J. (1969). Attachment and loss. Hogarth.

Cita Chicago Style (17a ed.)

Bowlby, John. Attachment and Loss. London: Hogarth, 1969.

Cita MLA (8a ed.)

Bowlby, John. Attachment and Loss. Hogarth, 1969.