Cita APA (7a ed.)

Kraemer, G. W. (1992). A psychobiological theory of attachment. [s.n.].

Cita Chicago Style (17a ed.)

Kraemer, Gary W. A Psychobiological Theory of Attachment. [S.l.]: [s.n.], 1992.

Cita MLA (9a ed.)

Kraemer, Gary W. A Psychobiological Theory of Attachment. [s.n.], 1992.