Joseph McGoldrick, "The New York City Election of 1929," The American Political Science Review, Vol. 24, No. 3 (Aug., 1930), pp. 688-690 in JSTOR
Andrea Friedman, "'The Habitats of Sex-Crazed Perverts': Campaigns against Burlesque in Depression-Era New York City," Journal of the History of Sexuality, Vol. 7, No. 2, (Oct., 1996), pp. 203-238 in JSTOR
He was first in Melvin G. Holli, The American Mayor (1993); Sam Roberts, "The Giuliani Years: History; La Guardia's Legacy Is Formidable, but it May Be Surpassed," New York TimesNew York Times April 18, 2008
David M. Esposito, and Jackie R. Esposito, "La Guardia and the Nazis, 1933-1938." American Jewish History 1988 78(1): 38-53. ISSN0164-0178; quote from H. Paul Jeffers, The Napoleon of New York (2002) p. 233.