Analysis of information sources in references of the Wikipedia article "Distinción entre sexo y género" in Spanish language version.
Sex: the classification of people as male or female. Gender identity: one's internal, personal sense of being a man or woman (or a boy or a girl).GLAAD (Gay and Lesbian Alliance Against Defamation): GLAAD Media Reference Guide
(«guía de referencia para medios de comunicación»), glosario de términos sobre transgénero.
GLAAD, 8.ª edición, mayo de 2010. Consultado el 1 de marzo de 2011
Gender refers to the socially constructed roles, behaviours, activities, and attributes that a given society considers appropriate for men and women. […] Masculine and feminine are gender categories.«What do we mean by "sex" and "gender"?»,
artículo en inglés consultado el 24 de agosto de 2010