Petry, N. M. (2011). Contingency management: What it is and why psychiatrists should want to use it. Royal College of Psychiatrists.
Citação norma ChicagoPetry, Nancy M. Contingency Management: What It Is and Why Psychiatrists Should Want To use It. Royal College of Psychiatrists, 2011.
Citação norma MLAPetry, Nancy M. Contingency Management: What It Is and Why Psychiatrists Should Want To use It. Royal College of Psychiatrists, 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.