APA (7th ed.) Citation

Lentz, H. M. (1994). Heads of states and governments: A worldwide encyclopedia of over 2,300 leaders, 1945 through 1992. Fitzroy Dearborn.

Chicago Style (17th ed.) Citation

Lentz, Harris M. Heads of States and Governments: A Worldwide Encyclopedia of over 2,300 Leaders, 1945 Through 1992. London: Fitzroy Dearborn, 1994.

MLA (9th ed.) Citation

Lentz, Harris M. Heads of States and Governments: A Worldwide Encyclopedia of over 2,300 Leaders, 1945 Through 1992. Fitzroy Dearborn, 1994.