APA (7th ed.) Citation

Aron, R., & Heckscher, A. (1973). Diversity of worlds: France and the United States look at their common problems. Greenwood Press.

Chicago Style (17th ed.) Citation

Aron, Raymond, and August Heckscher. Diversity of Worlds: France and the United States Look at Their Common Problems. Westport, Conn.: Greenwood Press, 1973.

MLA (9th ed.) Citation

Aron, Raymond, and August Heckscher. Diversity of Worlds: France and the United States Look at Their Common Problems. Greenwood Press, 1973.