APA (7th ed.) Citation

(1995). Countries of the world and their leaders: Yearbook 1995. Gale Research.

Chicago Style (17th ed.) Citation

Countries of the World and Their Leaders: Yearbook 1995. Detroit, Mich: Gale Research, 1995.

MLA (9th ed.) Citation

Countries of the World and Their Leaders: Yearbook 1995. Gale Research, 1995.