Cita APA (7a ed.)

It Works How And Why: The Twelve Steps and Twelve Traditions of Narcotics Anonymous. Narcotics Anonymous World Services.

Cita Chicago Style (17a ed.)

It Works How And Why: The Twelve Steps and Twelve Traditions of Narcotics Anonymous. Narcotics Anonymous World Services.

Cita MLA (8a ed.)

It Works How And Why: The Twelve Steps and Twelve Traditions of Narcotics Anonymous. Narcotics Anonymous World Services.