Duffin, A. T. (2010). History in blue: 160 years of women police, sheriffs, detectives and state troopers. Kaplan Publ.
Cita Chicago Style (17a ed.)Duffin, Allan T. History in Blue: 160 Years of Women Police, Sheriffs, Detectives and State Troopers. New York: Kaplan Publ, 2010.
Cita MLA (9a ed.)Duffin, Allan T. History in Blue: 160 Years of Women Police, Sheriffs, Detectives and State Troopers. Kaplan Publ, 2010.
Precaución: Estas citas no son 100% exactas.
