APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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