Citazione APA

(2006). Countries of the world and their leaders yearbook, 2007. Farmington Hills, Mich: Gale Group.

Stile di citazione Chicago

Countries of the World and Their Leaders Yearbook, 2007. Farmington Hills, Mich: Gale Group, 2006.

Citazione MLA

Countries of the World and Their Leaders Yearbook, 2007. Farmington Hills, Mich: Gale Group, 2006.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.