G., Jesús Velasco (2004). "Seymour Martin Lipset: Life and Work". The Canadian Journal of Sociology. 29 (4): 583–601. doi:10.2307/3654712. JSTOR3654712.
Lipset, Seymour Martin (March 1959). "Some Social Requisites of Democracy: Economic Development and Political Legitimacy". The American Political Science Review. 53 (1): 69–105. doi:10.2307/1951731. JSTOR1951731. S2CID53686238.
G., Jesús Velasco (2004). "Seymour Martin Lipset: Life and Work". The Canadian Journal of Sociology. 29 (4): 583–601. doi:10.2307/3654712. JSTOR3654712.
Lipset, Seymour Martin (March 1959). "Some Social Requisites of Democracy: Economic Development and Political Legitimacy". The American Political Science Review. 53 (1): 69–105. doi:10.2307/1951731. JSTOR1951731. S2CID53686238.
Lipset, Seymour Martin (March 1959). "Some Social Requisites of Democracy: Economic Development and Political Legitimacy". The American Political Science Review. 53 (1): 69–105. doi:10.2307/1951731. JSTOR1951731. S2CID53686238.