SPENSER, D. Sobre Jacob A. Zumoff, The Communist International and US Communism, 1919-1929. Historia Mexicana, [S. l.], v. 67, n. 4, p. 1946–1952, 2018. DOI: 10.24201/hm.v67i4.3586. Disponível em: https://historiamexicana.colmex.mx/index.php/RHM/article/view/3586. Acesso em: 6 may. 2024.