What has the author Rudolph W Giuliani written?

Rudolph W. Giuliani has written:

'The newest New Yorkers, 1995-1996' -- subject(s): Emigration and Immigration, Immigrants, Statistics

'Leadership through the ages' -- subject(s): Leadership, Quotations, maxims, Biography

'What will you be' -- subject(s): Fiction, Occupations, Stories in rhyme