Cita APA (7a ed.)

Parkes, C. M. (1991). Attachment across the life cycle. Routledge.

Cita Chicago Style (17a ed.)

Parkes, Colin Murray. Attachment Across the Life Cycle. London [u.a.]: Routledge, 1991.

Cita MLA (9a ed.)

Parkes, Colin Murray. Attachment Across the Life Cycle. Routledge, 1991.