Cita APA (7a ed.)

Bowlby, J. (1988). A secure base: : parent-child attachment and healthy human development. Basic Books.

Cita Chicago Style (17a ed.)

Bowlby, John. A Secure Base: : Parent-child Attachment and Healthy Human Development. New York: Basic Books, 1988.

Cita MLA (9a ed.)

Bowlby, John. A Secure Base: : Parent-child Attachment and Healthy Human Development. Basic Books, 1988.