APA (7e ed.) Bronvermelding

Nulle, S. H. (1980). The ancient world: Classics of western thought (3rd ed.). Harcourt brace.

Chicago (17e ed.) Bronvermelding

Nulle, Stebelton H. The Ancient World: Classics of Western Thought. 3rd ed. New York: Harcourt brace, 1980.

MLA (9e ed.) Bronvermelding

Nulle, Stebelton H. The Ancient World: Classics of Western Thought. 3rd ed. Harcourt brace, 1980.