APA (7th ed.) Citation

Bowlby, J. (1973). Separation: Anxiety and anger. Basic Books, a member of the Perseus Books Group.

Chicago Style (17th ed.) Citation

Bowlby, John. Separation: Anxiety and Anger. [New York]: Basic Books, a member of the Perseus Books Group, 1973.

MLA (9th ed.) Citation

Bowlby, John. Separation: Anxiety and Anger. Basic Books, a member of the Perseus Books Group, 1973.