APA
Shaffer D., Lucas C. P. & Richters J. E. (1999). Diagnostic assessment in child and adolescent psychopathology. New York: The Guilford Press.
Chicago
Shaffer David, Lucas Christopher P and Richters John Edward. 1999. Diagnostic assessment in child and adolescent psychopathology. New York: The Guilford Press.
Harvard
Shaffer D., Lucas C. P. and Richters J. E. (1999). Diagnostic assessment in child and adolescent psychopathology. New York: The Guilford Press.
MLA
Shaffer David, Lucas Christopher P and Richters John Edward. Diagnostic assessment in child and adolescent psychopathology. New York: The Guilford Press. 1999.