एपीए उद्धरण

P.Pickett William. (2004). Leaders of the Americas 2. American: McGraw -Hill.

शिकागो स्टाइल उद्धरण

P.Pickett William. Leaders of the Americas 2. American: McGraw -Hill, 2004.

एमएलए उद्धरण

P.Pickett William. Leaders of the Americas 2. American: McGraw -Hill, 2004.