APA

Bowlby J., . (1997). Attachment and loss. London: Pimlico.

Chicago

Bowlby John, . 1997. Attachment and loss. London: Pimlico.

Harvard

Bowlby J., . (1997). Attachment and loss. London: Pimlico.

MLA

Bowlby John, . Attachment and loss. London: Pimlico. 1997.