APA (7th ed.) Citation
Hirschfeld, C., & Knoebel, E. E. (1980). The modern world (3d ed.). Harcourt Brace Jovanovich.
Chicago Style (17th ed.) Citation
Hirschfeld, Charles, and Edgar E. Knoebel. The Modern World. 3d ed. New York: Harcourt Brace Jovanovich, 1980.
MLA (9th ed.) Citation
Hirschfeld, Charles, and Edgar E. Knoebel. The Modern World. 3d ed. Harcourt Brace Jovanovich, 1980.
Warning: These citations may not always be 100% accurate.