APA (7th ed.) Citation

(2011). I'm a proud American =: Soy americano con orgullo. U.S. Citizenship and Immigration Services.

Chicago Style (17th ed.) Citation

I'm a Proud American =: Soy Americano Con Orgullo. [Washington, D.C.]: U.S. Citizenship and Immigration Services, 2011.

MLA (9th ed.) Citation

I'm a Proud American =: Soy Americano Con Orgullo. U.S. Citizenship and Immigration Services, 2011.