"La mujer," one of the articles that Luisa Capetillo published in 1912 in Cultura obrera, was later included in the anthology, Voces de liberación (Voices of Liberation), published in 1921 by Lux Editorial from Argentina. Printed for the purpose of gathering the libertarian voices of the most progressive women in the world, the book contains short essays by Rosa Luxembourg, Clara Zetkin, Emma Goldman, Louise Michel, and various Latin American women including Margarita Ortega, a Mexican revolutionary, María López from Buenos Aires, and Rosalina Gutiérrez from Montevideo. The editorial note introducing the authors states, "These voices of liberation are a call to women by their own compañeras to think more and act together with men in the struggle for human emancipation."
Clara Zetkin

January 1, 1970