APA (7th ed.) Citation

Heller, D., & Heller, D. (1967). Paths of diplomacy: America's secretaries of state. Lippincott.

Chicago Style (17th ed.) Citation

Heller, Deane, and David Heller. Paths of Diplomacy: America's Secretaries of State. Philadelphia, Pa. ; New York: Lippincott, 1967.

MLA (9th ed.) Citation

Heller, Deane, and David Heller. Paths of Diplomacy: America's Secretaries of State. Lippincott, 1967.