Twelve Concepts for World Service SKU: BM-32 En existencias $3.45 Descuentos disponibles CantidadPrecio1 - 19$3.4520 - 99$3.24100 - 199$3.04200 +$2.83 The Concepts - principles of service that have emerged from A.A.'s service accomplishments and mistakes since its beginning - are set forth by Bill W. Twelve Concepts for
