Author's El capital: conceptos fundamentales, 1971.

Carrión, L. Los cristianos en la Revolución ... 1987: t.p. (Marta Harnecker) cover (Martha Harnecker)

MST-Brésil, c2003: t.p. (Marta Harnecker) p. 4 of cover (journalist, researcher & militant well-known in Latin America)

Un mundo a construir, 2014: title page (Marta Harnecker) front cover flap (born 1937; sociologist who studied at the École normal de Paris)

Ecuador, la revolución urgente, 2015: title page (Marta Harnecker) page 90 (cimmartaharnecker@gmail.com)

CIESPAL website, July 21, 2017: posted 2016 (Marta Harnecker; sociologist; attended the École normal de Paris in the 1960s; born 1937 in Chile; former director of the Memoria Popular Latinoamericana in Havana and the Centro Internacional Miranda in Caracas) http://ciespal.org/noticias/marta-hanecker-y-su-vision-de-la-izquierda-latinoamericana-este-22-de-agosto-en-ciespal/

El país WWW site, viewed July 2, 2019 (Marta Harnecker; Chile, 1937-Canada, 2019; died June 15)