Romero Curtis, Maribel. Los niños índigo Maribel Romero Curtis. - 2a ed. - México SAGA c2004. - 170 p. 22cm. ISBN: 9685830045 Source: 86.80 Subjects--Topical Terms: Exceptional childrenColor--Psychological aspects.Personality in children. LC Class. No.: HQ773.5 / R65 2004