His Burguesía y prol. en el Perú, 1820-1930, 1980: t.p. (Ricardo Melgar Bao) p. iv (Ricardo Melgar)

Mariátegui, Indoamérica y las crisis civilizatorias de Occidente, 1995: t.p. (Ricardo Melgar Bao) p. 4 of cover (b. 1946, Lima, Perú; desde 1977 radica en México)

Latin American perspectives, volume 35, number 2, 2008: page p (Ricardo Melgar Bao; Peruvian anthropologist, historian, and researcher for Mexico's National Institute of Anthropology and History; has published numerous articles on the Comintern in Latin America)

Spanish Wikipedia, January 23, 2025 (Ricardo Melgar Bao; born in Lima, Peru in 1946; died in Cuernavaca, Mexico on August 10, 2020; Peruvian professor, historian and anthropologist who resided in Mexico since 1977) https://es.wikipedia.org/wiki/Ricardo_Melgar_Bao