Cita APA (7a ed.)

Maps.com (Firm) & ebrary, Inc. (1999). Independence dates for countries of the world, 1999. Maps.com.

Cita Chicago Style (17a ed.)

Maps.com (Firm) y Inc ebrary. Independence Dates for Countries of the World, 1999. [S.l.]: Maps.com, 1999.

Cita MLA (9a ed.)

Maps.com (Firm) y Inc ebrary. Independence Dates for Countries of the World, 1999. Maps.com, 1999.