Bellows, Alan (2007년 5월 14일). “Terror on Wall Street”. 《DamnInteresting.com》. 2011년 12월 25일에 확인함.
doi.org
dx.doi.org
Gage, Beverly. (2007). “Why Violence Matters: Radicalism, Politics, and Class War in the Gilded Age and Progressive Era”. 《Journal for the Study of Radicalism》 1 (1): 99–109. doi:10.1353/jsr.2008.0021. ISSN1930-1197. S2CID154748636.
Gage, Beverly. (2007). “Why Violence Matters: Radicalism, Politics, and Class War in the Gilded Age and Progressive Era”. 《Journal for the Study of Radicalism》 1 (1): 99–109. doi:10.1353/jsr.2008.0021. ISSN1930-1197. S2CID154748636.
Gage, Beverly. (2007). “Why Violence Matters: Radicalism, Politics, and Class War in the Gilded Age and Progressive Era”. 《Journal for the Study of Radicalism》 1 (1): 99–109. doi:10.1353/jsr.2008.0021. ISSN1930-1197. S2CID154748636.